<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE article PUBLIC "-//NLM//DTD Journal Publishing DTD v2.3 20070202//EN" "journalpublishing.dtd">
<article xml:lang="EN" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" article-type="research-article">
<front>
<journal-meta>
<journal-id journal-id-type="publisher-id">Front. Public Health</journal-id>
<journal-title>Frontiers in Public Health</journal-title>
<abbrev-journal-title abbrev-type="pubmed">Front. Public Health</abbrev-journal-title>
<issn pub-type="epub">2296-2565</issn>
<publisher>
<publisher-name>Frontiers Media S.A.</publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id pub-id-type="doi">10.3389/fpubh.2025.1611358</article-id>
<article-categories>
<subj-group subj-group-type="heading">
<subject>Public Health</subject>
<subj-group>
<subject>Original Research</subject>
</subj-group>
</subj-group>
</article-categories>
<title-group>
<article-title>Cumulative effects of unemployment on health in midlife: the buffering effect of social participation</article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name><surname>Chen</surname> <given-names>Xiaoqun</given-names></name>
<xref ref-type="aff" rid="aff1"><sup>1</sup></xref>
<uri xlink:href="http://loop.frontiersin.org/people/3035288/overview"/>
<role content-type="https://credit.niso.org/contributor-roles/conceptualization/"/>
<role content-type="https://credit.niso.org/contributor-roles/data-curation/"/>
<role content-type="https://credit.niso.org/contributor-roles/formal-analysis/"/>
<role content-type="https://credit.niso.org/contributor-roles/funding-acquisition/"/>
<role content-type="https://credit.niso.org/contributor-roles/investigation/"/>
<role content-type="https://credit.niso.org/contributor-roles/methodology/"/>
<role content-type="https://credit.niso.org/contributor-roles/software/"/>
<role content-type="https://credit.niso.org/contributor-roles/writing-original-draft/"/>
<role content-type="https://credit.niso.org/contributor-roles/writing-review-editing/"/>
</contrib>
<contrib contrib-type="author">
<name><surname>Lau</surname> <given-names>Tsz Lam</given-names></name>
<xref ref-type="aff" rid="aff2"><sup>2</sup></xref>
<uri xlink:href="http://loop.frontiersin.org/people/3154476/overview"/>
<role content-type="https://credit.niso.org/contributor-roles/methodology/"/>
<role content-type="https://credit.niso.org/contributor-roles/writing-original-draft/"/>
<role content-type="https://credit.niso.org/contributor-roles/writing-review-editing/"/>
</contrib>
<contrib contrib-type="author">
<name><surname>Hu</surname> <given-names>Kerui</given-names></name>
<xref ref-type="aff" rid="aff1"><sup>1</sup></xref>
<uri xlink:href="http://loop.frontiersin.org/people/3154518/overview"/>
<role content-type="https://credit.niso.org/contributor-roles/methodology/"/>
<role content-type="https://credit.niso.org/contributor-roles/writing-original-draft/"/>
<role content-type="https://credit.niso.org/contributor-roles/writing-review-editing/"/>
</contrib>
<contrib contrib-type="author" corresp="yes">
<name><surname>Yuan</surname> <given-names>Jiangjun</given-names></name>
<xref ref-type="aff" rid="aff1"><sup>1</sup></xref>
<xref ref-type="corresp" rid="c001"><sup>&#x0002A;</sup></xref>
<uri xlink:href="http://loop.frontiersin.org/people/3136140/overview"/>
<role content-type="https://credit.niso.org/contributor-roles/supervision/"/>
<role content-type="https://credit.niso.org/contributor-roles/writing-original-draft/"/>
<role content-type="https://credit.niso.org/contributor-roles/writing-review-editing/"/>
</contrib>
</contrib-group>
<aff id="aff1"><sup>1</sup><institution>Hangzhou Vocational and Technical College</institution>, <addr-line>Hangzhou</addr-line>, <country>China</country></aff>
<aff id="aff2"><sup>2</sup><institution>Columbia University</institution>, <addr-line>New York City, NY</addr-line>, <country>United States</country></aff>
<author-notes>
<fn fn-type="edited-by"><p>Edited by: Yoshimichi Sato, Kyoto University of Advanced Science (KUAS), Japan</p></fn>
<fn fn-type="edited-by"><p>Reviewed by: Shuanglong Li, Guangzhou University, China</p>
<p>Hiroshi Kanbayashi, Tohoku Gakuin University, Japan</p></fn>
<corresp id="c001">&#x0002A;Correspondence: Jiangjun Yuan <email>yjj&#x00040;hzvtc.edu.cn</email></corresp>
</author-notes>
<pub-date pub-type="epub">
<day>12</day>
<month>08</month>
<year>2025</year>
</pub-date>
<pub-date pub-type="collection">
<year>2025</year>
</pub-date>
<volume>13</volume>
<elocation-id>1611358</elocation-id>
<history>
<date date-type="received">
<day>14</day>
<month>04</month>
<year>2025</year>
</date>
<date date-type="accepted">
<day>21</day>
<month>07</month>
<year>2025</year>
</date>
</history>
<permissions>
<copyright-statement>Copyright &#x000A9; 2025 Chen, Lau, Hu and Yuan.</copyright-statement>
<copyright-year>2025</copyright-year>
<copyright-holder>Chen, Lau, Hu and Yuan</copyright-holder>
<license xlink:href="http://creativecommons.org/licenses/by/4.0/"><p>This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.</p></license>
</permissions>
<abstract>
<sec>
<title>Objective</title>
<p>The purpose of this study was to investigate the cumulative impact of unemployment on the overall health of middle-aged and older adults in China, and to explore the moderating role of social participation and its gender differences.</p>
</sec>
<sec>
<title>Methods</title>
<p>This study utilized panel data from the China Health and Retirement Longitudinal Study (CHARLS). The sample included 5,973 individuals (2,830 men and 3,143 women), with respondents categorized by employment status and unemployment duration. Statistical methods included fixed effect model and factor analysis.</p>
</sec>
<sec>
<title>Results</title>
<p>(1) Unemployment significantly damages health, with more pronounced adverse effects among men than women. (2) For men, longer unemployment durations result in progressively worse health outcomes, with the greatest negative impact observed at 6&#x02013;8 years of unemployment. (3) Women experience significant health declines during short-term (0&#x02013;2 years) and medium-term (3&#x02013;5 years) unemployment only, with no additional deterioration in long-term unemployment. (4) Informal social participation significantly buffers the negative health effects of unemployment, particularly for men, while formal social participation shows no protective effect.</p>
</sec>
<sec>
<title>Conclusion</title>
<p>(1) This study demonstrates the cumulative and gendered impact of unemployment on the health of middle-aged and older adults in China. (2) Informal social participation provides a meaningful buffer against the adverse health consequences of unemployment, particularly for men, whereas formal social activities may not offer such protection and may even have negative effects in certain scenarios. (3) These findings underscore the importance of strengthening informal social support networks to mitigate health risks associated with job loss among older populations.</p>
</sec></abstract>
<kwd-group>
<kwd>unemployment</kwd>
<kwd>health effects</kwd>
<kwd>social participation</kwd>
<kwd>gender</kwd>
<kwd>middle-aged and older adults</kwd>
</kwd-group>
<counts>
<fig-count count="0"/>
<table-count count="14"/>
<equation-count count="11"/>
<ref-count count="36"/>
<page-count count="15"/>
<word-count count="9389"/>
</counts>
<custom-meta-wrap>
<custom-meta>
<meta-name>section-at-acceptance</meta-name>
<meta-value>Aging and Public Health</meta-value>
</custom-meta>
</custom-meta-wrap>
</article-meta>
</front>
<body>
<sec id="s1">
<title>1 Introduction</title>
<p>In middle and old age, people are more likely to experience life events that trigger role changes and increase psychological stress (<xref ref-type="bibr" rid="B1">1</xref>). Unemployment defined as the involuntary loss of paid employment (<xref ref-type="bibr" rid="B2">2</xref>), is a common trigger for such role transitions among middle-aged and older adults (<xref ref-type="bibr" rid="B3">3</xref>) and can increase susceptibility to disease (<xref ref-type="bibr" rid="B4">4</xref>). Compared with developed countries, the welfare support for the unemployed in China is less comprehensive, rendering unemployment more detrimental to health (<xref ref-type="bibr" rid="B5">5</xref>). According to China&#x00027;s seventh national population census conducted in 2020, 27.49% of people aged 65&#x02013;69 were still working, and in rural areas, as many as 46.11% of people aged 60&#x02013;64 remained employed (<xref ref-type="bibr" rid="B6">6</xref>). This phenomenon is largely attributed to two main factors: insufficient pension payments that fail to cover basic living expenses, and the desire of some older adults to maintain social purpose and self-worth beyond the official retirement age. Consequently, unemployment in older adults is a significant issue in China. Losing a job leads to altered or lost social roles, which in turn adversely affects health (<xref ref-type="bibr" rid="B7">7</xref>). In addition, middle-aged and older individuals often face greater challenges in securing new employment, as their skills may not easily transfer to other roles, resulting in prolonged periods of unemployment compared to younger workers (<xref ref-type="bibr" rid="B8">8</xref>).</p>
<p>Previous research broadly categorizes the negative impacts of unemployment into three areas. First, unemployment results in financial stress due to the loss of income and ensuing economic insecurity (<xref ref-type="bibr" rid="B9">9</xref>). Second, unemployment has been linked to various physical health issues, including diabetes (<xref ref-type="bibr" rid="B10">10</xref>), hypertension, coronary heart disease, and other chronic diseases (<xref ref-type="bibr" rid="B11">11</xref>, <xref ref-type="bibr" rid="B12">12</xref>). Third, unemployment harms mental health, and unemployment is associated with higher levels of depression (<xref ref-type="bibr" rid="B13">13</xref>), suicidal tendencies (<xref ref-type="bibr" rid="B14">14</xref>), and anxiety (<xref ref-type="bibr" rid="B15">15</xref>). Some studies, however, found no significant relationship between unemployment and certain chronic conditions (<xref ref-type="bibr" rid="B16">16</xref>, <xref ref-type="bibr" rid="B17">17</xref>). Some scholars have also stated that the impact of unemployment on health depends on the length of unemployment (<xref ref-type="bibr" rid="B18">18</xref>) and the gender of the unemployed people (<xref ref-type="bibr" rid="B19">19</xref>). Therefore, the inconsistent findings regarding the impact of unemployment on health may be attributed to a failure to take into account both the duration of unemployment and the gender of the unemployed. Classen et al. (<xref ref-type="bibr" rid="B14">14</xref>) found that long-term unemployed individuals, particularly those approaching 26 weeks of unemployment, face an increased risk of suicide, whereas individuals who are newly unemployed show no significant rise in suicide risk. Acevedo et al. (<xref ref-type="bibr" rid="B18">18</xref>) reported that both short-term and long-term unemployment elevate the risks of anxiety, depression, and poor self-perceived health for both men and women, though the risks are notably higher for those who are long-term unemployed. They also observed that the negative health effects of unemployment are relatively smaller among older women. Strandh et al. (<xref ref-type="bibr" rid="B19">19</xref>) discovered that in Ireland, where a traditional male breadwinner and female homemaker model prevails, male unemployment results in greater economic and psychological harm. In contrast, in Sweden, a country with a high level of gender equality, the psychological impact of unemployment does not significantly differ between men and women.</p>
<p>Social participation can affect the health level of middle-aged and older adults in direct or buffering ways. Regarding the direct effect, according to the activity theory of aging, older adults who actively engage in social and daily activities are better able to maintain their sense of identity, social roles, psychological satisfaction, and overall life satisfaction, thus achieving successful aging (<xref ref-type="bibr" rid="B20">20</xref>). The buffering effect is somewhat more complex. Social participation can provide older adults with social support, which refers to the emotional, informational, or practical assistance received from friends, family, or colleagues (<xref ref-type="bibr" rid="B21">21</xref>). Social support can play a &#x0201C;buffering&#x0201D; role in the face of stressful events, helping to mitigate the negative impacts of stress on both psychological and physical health (<xref ref-type="bibr" rid="B22">22</xref>, <xref ref-type="bibr" rid="B23">23</xref>). In other words, when individuals encounter difficulties, social support enables them to cope more effectively and reduce harm. Therefore, we propose that social participation can also buffer the negative effects of stressful events on the mental and physical health of older adults. However, scholarly research on the relationship between social participation and health has primarily focused on its direct (main) effects; for example, some scholars have explored the impact of volunteering on life satisfaction (<xref ref-type="bibr" rid="B7">7</xref>), while others have directly examined the effect of social participation on depression levels among older adults (<xref ref-type="bibr" rid="B20">20</xref>). Since social participation can provide social support, and social support is known to buffer the negative health impacts of stress, most current studies focus on the buffering role of social support while overlooking the potential buffering role of social participation itself. This is why we aim to directly investigate how social participation may buffer the health impacts of stress. In addition, previous studies have categorized social participation into two types: informal and formal. Informal social participation mainly refers to interactions with family, friends, and neighbors, while formal social participation refers to activities organized by institutions with the goal of accomplishing specific tasks. Research has found that informal social participation, due to its greater focus on emotional bonds and close interactions, may have a stronger effect in preventing depression and improving life satisfaction among middle-aged and older adults (<xref ref-type="bibr" rid="B20">20</xref>, <xref ref-type="bibr" rid="B24">24</xref>).</p>
<p>Based on the above analysis, we mainly put forward the following five hypotheses:</p>
<list list-type="bullet">
<list-item><p>H1: Unemployment has a negative impact on health among middle-aged and older adults.</p></list-item>
<list-item><p>H2: The detrimental effect of unemployment on health increases with longer durations of unemployment (cumulative effect).</p></list-item>
<list-item><p>H3: The negative health impact of unemployment is more severe for men than for women under Chinese context.</p></list-item>
<list-item><p>H4: Social participation moderates the relationship between unemployment and health by buffering the adverse effect of unemployment.</p></list-item>
<list-item><p>H5: Informal social participation provides a stronger buffering effect on health than formal social participation.</p></list-item>
</list>
<p>In summary, previous studies exhibit methodological limitations and content deficiencies when examining the relationship between unemployment and health. For methodological limitations, most studies rely on cross-sectional data that do not adequately control for unobserved individual characteristics, resulting in potential omitted variable bias (<xref ref-type="bibr" rid="B25">25</xref>). In terms of deficiencies, first of all, many studies ignore the dynamics of unemployment, that is, the length of unemployment, when analyzing the impact of unemployment on health. Secondly, regarding the selection of health indicators, which are basically mental health (<xref ref-type="bibr" rid="B23">23</xref>, <xref ref-type="bibr" rid="B26">26</xref>, <xref ref-type="bibr" rid="B27">27</xref>), few studies have explored the impact of unemployment on overall health. Finally, while some research has highlighted the moderating role of social support in the relationship between job loss and health (<xref ref-type="bibr" rid="B23">23</xref>). Considering social participation is an important source of social support (<xref ref-type="bibr" rid="B28">28</xref>), fewer studies have investigated how social participation itself may buffer the adverse health effects of job loss. This paper addresses these gaps by focusing on the Chinese context and examining the moderating effects of social participation, with special attention to gender differences. Based on the above analysis, the main research objectives of this study are to: (1) Describe gender differences in unemployment patterns among middle-aged and older adults. (2) Investigate the relationship between unemployment (and its duration) and overall health. (3) Examine how social participation moderates the impact of unemployment on health in middle-aged and older adults.</p>
</sec>
<sec id="s2">
<title>2 Methods</title>
<sec>
<title>2.1 Data source</title>
<p>This study utilizes data from the China Health and Retirement Longitudinal Study (CHARLS), which was conducted by Peking University using a multistage sampling strategy. Interviews were carried out in 2011 (baseline), 2013, 2015, and 2018. Given that work status data prior to 2011 were unavailable, only respondents employed at baseline were included in analyses related to unemployment duration. To ensure data quality, respondents who underwent retirement procedures (or early retirement) or had missing values for key variables, as well as those over 80 years old, were excluded. We ultimately obtained a sample set containing 5,973 respondents. Moreover, we compared the demographic characteristics of the 5,973 respondents included in our final analytic sample with those who were excluded and found no significant differences. The CHARLS survey was conducted by Peking University with ethical approval (IRB00001052&#x02013;11015), and all participants provided informed consent. This study uses de-identified secondary data, and no additional ethical approval was required.</p>
</sec>
<sec>
<title>2.2 Measures</title>
<sec>
<title>2.2.1 Dependent variables</title>
<p>Health was measured using several indicators, including Instrumental Activities of Daily Living, Basic Activities of Daily Living, depression score, pain situation, and episodic memory. These multiple indicators have overlapping parts and independent parts. This study conducted a factor analysis on these indicators and obtained three common factors: physical health, psychological health, and cognitive health. The overall health score was constructed using weighted contributions from these three factors. The score to measure the overall health of the middle-aged and older adults is computed as follows:</p>
<disp-formula id="E1"><mml:math id="M1"><mml:mtable columnalign="left"><mml:mtr><mml:mtd><mml:mi>h</mml:mi><mml:mi>e</mml:mi><mml:mi>a</mml:mi><mml:mi>l</mml:mi><mml:mi>t</mml:mi><mml:mi>h</mml:mi><mml:mtext>&#x000A0;</mml:mtext><mml:mi>s</mml:mi><mml:mi>c</mml:mi><mml:mi>o</mml:mi><mml:mi>r</mml:mi><mml:mi>e</mml:mi><mml:mo>=</mml:mo><mml:msub><mml:mrow><mml:mi>&#x003B1;</mml:mi></mml:mrow><mml:mrow><mml:mn>1</mml:mn></mml:mrow></mml:msub><mml:mtext>&#x000A0;</mml:mtext><mml:mo>&#x0002A;</mml:mo><mml:mtext>&#x000A0;</mml:mtext><mml:mi>p</mml:mi><mml:mi>h</mml:mi><mml:mi>y</mml:mi><mml:mi>s</mml:mi><mml:mi>i</mml:mi><mml:mi>c</mml:mi><mml:mi>a</mml:mi><mml:mi>l</mml:mi><mml:mtext>&#x000A0;</mml:mtext><mml:mi>h</mml:mi><mml:mi>e</mml:mi><mml:mi>a</mml:mi><mml:mi>l</mml:mi><mml:mi>t</mml:mi><mml:mi>h</mml:mi><mml:mo>&#x0002B;</mml:mo><mml:msub><mml:mrow><mml:mi>&#x003B1;</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub><mml:mtext>&#x000A0;</mml:mtext><mml:mo>&#x0002A;</mml:mo><mml:mtext>&#x000A0;</mml:mtext><mml:mi>p</mml:mi><mml:mi>s</mml:mi><mml:mi>y</mml:mi><mml:mi>c</mml:mi><mml:mi>h</mml:mi><mml:mi>o</mml:mi><mml:mi>l</mml:mi><mml:mi>o</mml:mi><mml:mi>g</mml:mi><mml:mi>i</mml:mi><mml:mi>c</mml:mi><mml:mi>a</mml:mi><mml:mi>l</mml:mi><mml:mtext>&#x000A0;</mml:mtext><mml:mi>h</mml:mi><mml:mi>e</mml:mi><mml:mi>a</mml:mi><mml:mi>l</mml:mi><mml:mi>t</mml:mi><mml:mi>h</mml:mi></mml:mtd></mml:mtr><mml:mtr><mml:mtd><mml:mtext>&#x02003;&#x02003;&#x02003;&#x02003;&#x02003;&#x02003;</mml:mtext><mml:mo>&#x0002B;</mml:mo><mml:msub><mml:mrow><mml:mi>&#x003B1;</mml:mi></mml:mrow><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msub><mml:mtext>&#x000A0;</mml:mtext><mml:mo>&#x0002A;</mml:mo><mml:mtext>&#x000A0;</mml:mtext><mml:mi>c</mml:mi><mml:mi>o</mml:mi><mml:mi>g</mml:mi><mml:mi>n</mml:mi><mml:mi>i</mml:mi><mml:mi>t</mml:mi><mml:mi>i</mml:mi><mml:mi>v</mml:mi><mml:mi>e</mml:mi><mml:mtext>&#x000A0;</mml:mtext><mml:mi>h</mml:mi><mml:mi>e</mml:mi><mml:mi>a</mml:mi><mml:mi>l</mml:mi><mml:mi>t</mml:mi><mml:mi>h</mml:mi><mml:mtext>&#x000A0;</mml:mtext></mml:mtd></mml:mtr></mml:mtable></mml:math></disp-formula>
<p>where &#x003B1;<sub>1</sub>, &#x003B1;<sub>2</sub>, and &#x003B1;<sub>3</sub> represent the weight of common factors in the total score. The weight is determined by the contribution rate of each factor in the cumulative variance. In the factor analysis in this study, the weights of the three factors are finally obtained as 0.53, 0.25, and 0.22, respectively, which also indicates that physical health can explain more than half of the changes in health level.</p>
</sec>
<sec>
<title>2.2.2 Independent variables</title>
<p>The independent variables of this article are the respondents&#x00027; working status and changes in working status. Unemployment status was recorded in each wave and classified into three categories: employed, unemployed-but-not-retired, and not working due to retirement. This study defines unemployment as a respondent who is neither working nor retired. In this study, unemployment is operationalized as the state of being not in employment while not retired. Accordingly, a dummy variable was generated (1 = unemployed and not retired; 0 = employed). In order to study the impact of unemployment duration on the health level of the unemployed, this study divided the employment status into four categories by comparing the working status of the previous interviews with the current working status. The four categories are: consistently employed, unemployed for 0&#x02013;2 years, unemployed for 3&#x02013;5 years, and unemployed for 6&#x02013;8 years. &#x0201C;Consistently employed&#x0201D; represents respondents that have a job in the current period and also had a job in the previous period. &#x0201C;Unemployed for 0&#x02013;2 years&#x0201D; represents respondents that have no job in the current period and had a job in the previous period. &#x0201C;Unemployed for 3&#x02013;5 years&#x0201D; represents respondents who were unemployed in the current period and the previous period, but were employed before those two periods. &#x0201C;Unemployed for 6&#x02013;8 years&#x0201D; refers to respondents who had a job in the first period and no job in the next three periods. In addition, this study cannot obtain the length of unemployment of respondents who did not work in the first period because there is no sample data from the previous period. In order to ensure the rigor of the research, this study only retains samples with jobs in the first period.</p>
</sec>
<sec>
<title>2.2.3 Moderator variables</title>
<p>There are two moderator variables in this study, namely formal social participation and informal social participation. Previous studies classified social activities into informal and formal based on factors such as intimacy, purpose, and participation intensity (<xref ref-type="bibr" rid="B20">20</xref>). Social activities that are purposeful and require a lower level of intimacy among participants are categorized as formal, whereas those that are less goal-oriented and demand a higher degree of closeness among participants are deemed informal. Based on these definitions and the social activities included in the CHARLS questionnaire, formal social activities include &#x0201C;participating in club activities,&#x0201D; &#x0201C;participating in volunteer or charity activities,&#x0201D; &#x0201C;taking regular and unpaid care of patients who do not live with you,&#x0201D; and &#x0201C;participating in training courses or attending school.&#x0201D; Formal social participation is a binary variable (1 = participation in at least one formal activity in the past month; 0 = no participation in the past month). Informal social activities include &#x0201C;going to parks or other places to dance, exercise, practice qigong, etc.,&#x0201D; &#x0201C;socializing with friends&#x0201D; and &#x0201C;playing mahjong, chess, cards, going to community rooms.&#x0201D; This is also coded as a binary variable (1 = participation in at least one informal activity in the past month; 0 = no participation in the past month).</p>
</sec>
<sec>
<title>2.2.4 Control variables</title>
<p>Based on previous research (<xref ref-type="bibr" rid="B23">23</xref>), this study controlled for several demographic and socioeconomic factors including age, education level, and place of residence. Family structure variables (e.g., marital status, number of living children, history of child loss, and parental survival status) were also included. In addition, two health-related behaviors (smoking and drinking) and financial information (annual income and private insurance status) were controlled to mitigate omitted variable bias.</p>
</sec>
</sec>
<sec>
<title>2.3 Econometric model</title>
<p>To address potential endogeneity due to omitted variable bias caused by the individual heterogeneity that does not change with time (e.g., unobserved individual characteristic such as inherent ability or personality), this study employs the individual fixed effect model. In addition, the Hausman test also supports fixed effect model, the model of this study is as follows:</p>
<p>(1) Two-class main effect model (baseline model: working)</p>
<p>This baseline model divides respondents simply into &#x0201C;employed&#x0201D; and &#x0201C;unemployed&#x0201D; categories to estimates the average impact of unemployment on the health level of the respondents. The model is shown in <xref ref-type="disp-formula" rid="E2">Equation (1)</xref>:</p>
<disp-formula id="E2"><label>(1)</label><mml:math id="M2"><mml:mtable class="eqnarray" columnalign="left"><mml:mtr><mml:mtd><mml:mi>h</mml:mi><mml:mi>e</mml:mi><mml:mi>a</mml:mi><mml:mi>l</mml:mi><mml:mi>t</mml:mi><mml:msub><mml:mrow><mml:mi>h</mml:mi></mml:mrow><mml:mrow><mml:mi>i</mml:mi><mml:mi>t</mml:mi></mml:mrow></mml:msub><mml:mo>=</mml:mo><mml:msub><mml:mrow><mml:mi>&#x003B2;</mml:mi></mml:mrow><mml:mrow><mml:mn>0</mml:mn></mml:mrow></mml:msub><mml:mo>&#x0002B;</mml:mo><mml:msub><mml:mrow><mml:mi>&#x003B2;</mml:mi></mml:mrow><mml:mrow><mml:mn>1</mml:mn></mml:mrow></mml:msub><mml:mi>u</mml:mi><mml:mi>n</mml:mi><mml:mi>e</mml:mi><mml:mi>m</mml:mi><mml:mi>p</mml:mi><mml:mi>l</mml:mi><mml:mi>o</mml:mi><mml:mi>y</mml:mi><mml:mi>e</mml:mi><mml:msub><mml:mrow><mml:mi>d</mml:mi></mml:mrow><mml:mrow><mml:mi>i</mml:mi><mml:mi>t</mml:mi></mml:mrow></mml:msub><mml:mo>&#x0002B;</mml:mo><mml:msub><mml:mrow><mml:mi>&#x003B2;</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub><mml:mi>i</mml:mi><mml:mi>n</mml:mi><mml:mi>f</mml:mi><mml:mi>o</mml:mi><mml:mi>r</mml:mi><mml:mi>m</mml:mi><mml:mi>a</mml:mi><mml:msub><mml:mrow><mml:mi>l</mml:mi></mml:mrow><mml:mrow><mml:mi>i</mml:mi><mml:mi>t</mml:mi></mml:mrow></mml:msub><mml:mo>&#x0002B;</mml:mo><mml:msub><mml:mrow><mml:mi>&#x003B2;</mml:mi></mml:mrow><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msub><mml:mi>f</mml:mi><mml:mi>o</mml:mi><mml:mi>r</mml:mi><mml:mi>m</mml:mi><mml:mi>a</mml:mi><mml:msub><mml:mrow><mml:mi>l</mml:mi></mml:mrow><mml:mrow><mml:mi>i</mml:mi><mml:mi>t</mml:mi></mml:mrow></mml:msub></mml:mtd></mml:mtr><mml:mtr><mml:mtd><mml:mtext>&#x02003;&#x02003;&#x02003;&#x02003;</mml:mtext><mml:mo>&#x0002B;</mml:mo><mml:msub><mml:mrow><mml:mi>&#x003B2;</mml:mi></mml:mrow><mml:mrow><mml:mn>4</mml:mn></mml:mrow></mml:msub><mml:mi>c</mml:mi><mml:mi>o</mml:mi><mml:mi>n</mml:mi><mml:mi>t</mml:mi><mml:mi>r</mml:mi><mml:mi>o</mml:mi><mml:msub><mml:mrow><mml:mi>l</mml:mi></mml:mrow><mml:mrow><mml:mi>i</mml:mi><mml:mi>t</mml:mi></mml:mrow></mml:msub><mml:mo>&#x0002B;</mml:mo><mml:msub><mml:mrow><mml:mi>u</mml:mi></mml:mrow><mml:mrow><mml:mi>i</mml:mi></mml:mrow></mml:msub><mml:mo>&#x0002B;</mml:mo><mml:msub><mml:mrow><mml:mi>&#x003B5;</mml:mi></mml:mrow><mml:mrow><mml:mi>i</mml:mi><mml:mi>t</mml:mi></mml:mrow></mml:msub></mml:mtd></mml:mtr></mml:mtable></mml:math></disp-formula>
<p>Where <italic>health</italic><sub><italic>it</italic></sub> represents overall health score for respondent <italic>i</italic> at time <italic>t</italic>, <italic>unemployed</italic><sub><italic>it</italic></sub> is a dummy variable, and 1 indicates that respondent <italic>i</italic> was unemployed at time t. <italic>informal</italic><sub><italic>it</italic></sub> and <italic>formal</italic><sub><italic>it</italic></sub> indicate whether the respondents participate in informal and formal social activities, respectively. <italic>control</italic><sub><italic>it</italic></sub> indicates control variables, &#x003B2;<sub>0</sub>&#x02212;&#x003B2;<sub>4</sub> are coefficients, where &#x003B2;<sub>1</sub> represents the average health effect of unemployment, <italic>u</italic><sub><italic>i</italic></sub> is the fixed effect of individual <italic>i</italic>, which will not change with time. &#x003B5;<sub><italic>it</italic></sub> is the error term.</p>
<p>(2) Four-class main effect model (Base model: working)</p>
<p>On the basis of the &#x0201C;Two-class main effect model,&#x0201D; this model further distinguished the duration of unemployment of respondents and divided respondents into the following four types: employed, unemployed for 0&#x02013;2 years, unemployed for 3&#x02013;5 years, and unemployed for 6&#x02013;8 years. The model is shown in <xref ref-type="disp-formula" rid="E3">Equation (2)</xref>:</p>
<disp-formula id="E3"><label>(2)</label><mml:math id="M4"><mml:mtable class="eqnarray" columnalign="left"><mml:mtr><mml:mtd><mml:mi>h</mml:mi><mml:mi>e</mml:mi><mml:mi>a</mml:mi><mml:mi>l</mml:mi><mml:mi>t</mml:mi><mml:msub><mml:mrow><mml:mi>h</mml:mi></mml:mrow><mml:mrow><mml:mi>i</mml:mi><mml:mi>t</mml:mi></mml:mrow></mml:msub><mml:mo>=</mml:mo><mml:msub><mml:mrow><mml:mi>&#x003B2;</mml:mi></mml:mrow><mml:mrow><mml:mn>0</mml:mn></mml:mrow></mml:msub><mml:mo>&#x0002B;</mml:mo><mml:mstyle displaystyle="true"><mml:munderover accentunder="false" accent="false"><mml:mrow><mml:mo>&#x02211;</mml:mo></mml:mrow><mml:mrow><mml:mi>j</mml:mi><mml:mo>=</mml:mo><mml:mn>1</mml:mn></mml:mrow><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:munderover></mml:mstyle><mml:msub><mml:mrow><mml:mi>&#x003B1;</mml:mi></mml:mrow><mml:mrow><mml:mi>j</mml:mi></mml:mrow></mml:msub><mml:mi>u</mml:mi><mml:mi>n</mml:mi><mml:mi>e</mml:mi><mml:mi>m</mml:mi><mml:mi>p</mml:mi><mml:mi>l</mml:mi><mml:mi>o</mml:mi><mml:mi>y</mml:mi><mml:mi>e</mml:mi><mml:msub><mml:mrow><mml:mi>d</mml:mi></mml:mrow><mml:mrow><mml:mi>j</mml:mi><mml:mi>i</mml:mi><mml:mi>t</mml:mi></mml:mrow></mml:msub><mml:mo>&#x0002B;</mml:mo><mml:msub><mml:mrow><mml:mi>&#x003B2;</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub><mml:mi>i</mml:mi><mml:mi>n</mml:mi><mml:mi>f</mml:mi><mml:mi>o</mml:mi><mml:mi>r</mml:mi><mml:mi>m</mml:mi><mml:mi>a</mml:mi><mml:msub><mml:mrow><mml:mi>l</mml:mi></mml:mrow><mml:mrow><mml:mi>i</mml:mi><mml:mi>t</mml:mi></mml:mrow></mml:msub><mml:mo>&#x0002B;</mml:mo><mml:msub><mml:mrow><mml:mi>&#x003B2;</mml:mi></mml:mrow><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msub><mml:mi>f</mml:mi><mml:mi>o</mml:mi><mml:mi>r</mml:mi><mml:mi>m</mml:mi><mml:mi>a</mml:mi><mml:msub><mml:mrow><mml:mi>l</mml:mi></mml:mrow><mml:mrow><mml:mi>i</mml:mi><mml:mi>t</mml:mi></mml:mrow></mml:msub></mml:mtd></mml:mtr><mml:mtr><mml:mtd><mml:mtext>&#x02003;&#x02003;&#x02003;</mml:mtext><mml:mo>&#x0002B;</mml:mo><mml:msub><mml:mrow><mml:mi>&#x003B2;</mml:mi></mml:mrow><mml:mrow><mml:mn>4</mml:mn></mml:mrow></mml:msub><mml:mi>c</mml:mi><mml:mi>o</mml:mi><mml:mi>n</mml:mi><mml:mi>t</mml:mi><mml:mi>r</mml:mi><mml:mi>o</mml:mi><mml:msub><mml:mrow><mml:mi>l</mml:mi></mml:mrow><mml:mrow><mml:mi>i</mml:mi><mml:mi>t</mml:mi></mml:mrow></mml:msub><mml:mo>&#x0002B;</mml:mo><mml:msub><mml:mrow><mml:mi>u</mml:mi></mml:mrow><mml:mrow><mml:mi>i</mml:mi></mml:mrow></mml:msub><mml:mo>&#x0002B;</mml:mo><mml:msub><mml:mrow><mml:mi>&#x003B5;</mml:mi></mml:mrow><mml:mrow><mml:mi>i</mml:mi><mml:mi>t</mml:mi></mml:mrow></mml:msub></mml:mtd></mml:mtr></mml:mtable></mml:math></disp-formula>
<p>Where <italic>unemployed</italic><sub><italic>jit</italic></sub> represents respondent <italic>i</italic>&#x00027;s <italic>j</italic>-th unemployment variable at time t. The first unemployment variable represents 0&#x02013;2 years of unemployment, the second is 3&#x02013;5 years of unemployment, and the third is 6&#x02013;8 years of unemployment, &#x003B1;<sub><italic>j</italic></sub> represents the coefficient in front of the <italic>j</italic>-th unemployment variable.</p>
<p>(3) Two-class moderating effect model</p>
<p>To examine the buffering (moderating) effect of social participation, interaction terms between unemployment status and the moderator variables (<italic>unemploye</italic><sub><italic>d</italic><sub><italic>it</italic></sub> &#x0002A; <italic>informalit</italic></sub> and <italic>unemploye</italic><sub><italic>d</italic><sub><italic>it</italic></sub> &#x0002A; <italic>formalit</italic></sub>) are added to Model (<xref ref-type="bibr" rid="B1">1</xref>). The specific Equation is shown in <xref ref-type="disp-formula" rid="E4">(3)</xref>:</p>
<disp-formula id="E4"><label>(3)</label><mml:math id="M6"><mml:mtable class="eqnarray" columnalign="left"><mml:mtr><mml:mtd><mml:mi>h</mml:mi><mml:mi>e</mml:mi><mml:mi>a</mml:mi><mml:mi>l</mml:mi><mml:mi>t</mml:mi><mml:msub><mml:mrow><mml:mi>h</mml:mi></mml:mrow><mml:mrow><mml:mi>i</mml:mi><mml:mi>t</mml:mi></mml:mrow></mml:msub><mml:mo>=</mml:mo><mml:msub><mml:mrow><mml:mi>&#x003B2;</mml:mi></mml:mrow><mml:mrow><mml:mn>0</mml:mn></mml:mrow></mml:msub><mml:mo>&#x0002B;</mml:mo><mml:msub><mml:mrow><mml:mi>&#x003B2;</mml:mi></mml:mrow><mml:mrow><mml:mn>1</mml:mn></mml:mrow></mml:msub><mml:mi>u</mml:mi><mml:mi>n</mml:mi><mml:mi>e</mml:mi><mml:mi>m</mml:mi><mml:mi>p</mml:mi><mml:mi>l</mml:mi><mml:mi>o</mml:mi><mml:mi>y</mml:mi><mml:mi>e</mml:mi><mml:msub><mml:mrow><mml:mi>d</mml:mi></mml:mrow><mml:mrow><mml:mi>i</mml:mi><mml:mi>t</mml:mi></mml:mrow></mml:msub><mml:mo>&#x0002B;</mml:mo><mml:msub><mml:mrow><mml:mi>&#x003B2;</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub><mml:mi>i</mml:mi><mml:mi>n</mml:mi><mml:mi>f</mml:mi><mml:mi>o</mml:mi><mml:mi>r</mml:mi><mml:mi>m</mml:mi><mml:mi>a</mml:mi><mml:msub><mml:mrow><mml:mi>l</mml:mi></mml:mrow><mml:mrow><mml:mi>i</mml:mi><mml:mi>t</mml:mi></mml:mrow></mml:msub><mml:mo>&#x0002B;</mml:mo><mml:msub><mml:mrow><mml:mi>&#x003B2;</mml:mi></mml:mrow><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msub><mml:mi>f</mml:mi><mml:mi>o</mml:mi><mml:mi>r</mml:mi><mml:mi>m</mml:mi><mml:mi>a</mml:mi><mml:msub><mml:mrow><mml:mi>l</mml:mi></mml:mrow><mml:mrow><mml:mi>i</mml:mi><mml:mi>t</mml:mi></mml:mrow></mml:msub></mml:mtd></mml:mtr><mml:mtr><mml:mtd><mml:mtext>&#x02003;&#x02003;&#x02003;</mml:mtext><mml:mo>&#x0002B;</mml:mo><mml:msub><mml:mrow><mml:mi>&#x003B2;</mml:mi></mml:mrow><mml:mrow><mml:mn>4</mml:mn></mml:mrow></mml:msub><mml:mi>c</mml:mi><mml:mi>o</mml:mi><mml:mi>n</mml:mi><mml:mi>t</mml:mi><mml:mi>r</mml:mi><mml:mi>o</mml:mi><mml:msub><mml:mrow><mml:mi>l</mml:mi></mml:mrow><mml:mrow><mml:mi>i</mml:mi><mml:mi>t</mml:mi></mml:mrow></mml:msub><mml:mo>&#x0002B;</mml:mo><mml:msub><mml:mrow><mml:mi>&#x003B2;</mml:mi></mml:mrow><mml:mrow><mml:mn>5</mml:mn></mml:mrow></mml:msub><mml:msub><mml:mrow><mml:mi>u</mml:mi><mml:mi>n</mml:mi><mml:mi>e</mml:mi><mml:mi>m</mml:mi><mml:mi>p</mml:mi><mml:mi>l</mml:mi><mml:mi>o</mml:mi><mml:mi>y</mml:mi><mml:mi>e</mml:mi><mml:msub><mml:mrow><mml:mi>d</mml:mi></mml:mrow><mml:mrow><mml:mi>i</mml:mi><mml:mi>t</mml:mi></mml:mrow></mml:msub><mml:mtext>&#x000A0;</mml:mtext><mml:mo>&#x0002A;</mml:mo><mml:mtext>&#x000A0;</mml:mtext><mml:mi>i</mml:mi><mml:mi>n</mml:mi><mml:mi>f</mml:mi><mml:mi>o</mml:mi><mml:mi>r</mml:mi><mml:mi>m</mml:mi><mml:mi>a</mml:mi><mml:mi>l</mml:mi></mml:mrow><mml:mrow><mml:mi>i</mml:mi><mml:mi>t</mml:mi></mml:mrow></mml:msub></mml:mtd></mml:mtr><mml:mtr><mml:mtd><mml:mtext>&#x02003;&#x02003;&#x02003;</mml:mtext><mml:mo>&#x0002B;</mml:mo><mml:msub><mml:mrow><mml:mi>&#x003B2;</mml:mi></mml:mrow><mml:mrow><mml:mn>6</mml:mn></mml:mrow></mml:msub><mml:msub><mml:mrow><mml:mi>u</mml:mi><mml:mi>n</mml:mi><mml:mi>e</mml:mi><mml:mi>m</mml:mi><mml:mi>p</mml:mi><mml:mi>l</mml:mi><mml:mi>o</mml:mi><mml:mi>y</mml:mi><mml:mi>e</mml:mi><mml:msub><mml:mrow><mml:mi>d</mml:mi></mml:mrow><mml:mrow><mml:mi>i</mml:mi><mml:mi>t</mml:mi></mml:mrow></mml:msub><mml:mtext>&#x000A0;</mml:mtext><mml:mo>&#x0002A;</mml:mo><mml:mtext>&#x000A0;</mml:mtext><mml:mi>f</mml:mi><mml:mi>o</mml:mi><mml:mi>r</mml:mi><mml:mi>m</mml:mi><mml:mi>a</mml:mi><mml:mi>l</mml:mi></mml:mrow><mml:mrow><mml:mi>i</mml:mi><mml:mi>t</mml:mi></mml:mrow></mml:msub><mml:mo>&#x0002B;</mml:mo><mml:msub><mml:mrow><mml:mi>u</mml:mi></mml:mrow><mml:mrow><mml:mi>i</mml:mi></mml:mrow></mml:msub><mml:mo>&#x0002B;</mml:mo><mml:msub><mml:mrow><mml:mi>&#x003B5;</mml:mi></mml:mrow><mml:mrow><mml:mi>i</mml:mi><mml:mi>t</mml:mi></mml:mrow></mml:msub></mml:mtd></mml:mtr></mml:mtable></mml:math></disp-formula>
<p>(4) Four-class moderating effect model</p>
<p>Extending Model (2), this formulation introduces interaction terms for each unemployment duration category with both moderator variables. The specific Equation is shown in <xref ref-type="disp-formula" rid="E5">(4)</xref>:</p>
<disp-formula id="E5"><label>(4)</label><mml:math id="M8"><mml:mtable class="eqnarray" columnalign="left"><mml:mtr><mml:mtd><mml:mi>h</mml:mi><mml:mi>e</mml:mi><mml:mi>a</mml:mi><mml:mi>l</mml:mi><mml:mi>t</mml:mi><mml:msub><mml:mrow><mml:mi>h</mml:mi></mml:mrow><mml:mrow><mml:mi>i</mml:mi><mml:mi>t</mml:mi></mml:mrow></mml:msub><mml:mo>=</mml:mo><mml:msub><mml:mrow><mml:mi>&#x003B2;</mml:mi></mml:mrow><mml:mrow><mml:mn>0</mml:mn></mml:mrow></mml:msub><mml:mo>&#x0002B;</mml:mo><mml:mstyle displaystyle="true"><mml:munderover accentunder="false" accent="false"><mml:mrow><mml:mo>&#x02211;</mml:mo></mml:mrow><mml:mrow><mml:mi>j</mml:mi><mml:mo>=</mml:mo><mml:mn>1</mml:mn></mml:mrow><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:munderover></mml:mstyle><mml:msub><mml:mrow><mml:mi>&#x003B1;</mml:mi></mml:mrow><mml:mrow><mml:mi>j</mml:mi></mml:mrow></mml:msub><mml:mi>u</mml:mi><mml:mi>n</mml:mi><mml:mi>e</mml:mi><mml:mi>m</mml:mi><mml:mi>p</mml:mi><mml:mi>l</mml:mi><mml:mi>o</mml:mi><mml:mi>y</mml:mi><mml:mi>e</mml:mi><mml:msub><mml:mrow><mml:mi>d</mml:mi></mml:mrow><mml:mrow><mml:mi>j</mml:mi><mml:mi>i</mml:mi><mml:mi>t</mml:mi></mml:mrow></mml:msub><mml:mo>&#x0002B;</mml:mo><mml:msub><mml:mrow><mml:mi>&#x003B2;</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub><mml:mi>i</mml:mi><mml:mi>n</mml:mi><mml:mi>f</mml:mi><mml:mi>o</mml:mi><mml:mi>r</mml:mi><mml:mi>m</mml:mi><mml:mi>a</mml:mi><mml:msub><mml:mrow><mml:mi>l</mml:mi></mml:mrow><mml:mrow><mml:mi>i</mml:mi><mml:mi>t</mml:mi></mml:mrow></mml:msub><mml:mo>&#x0002B;</mml:mo><mml:msub><mml:mrow><mml:mi>&#x003B2;</mml:mi></mml:mrow><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msub><mml:mi>f</mml:mi><mml:mi>o</mml:mi><mml:mi>r</mml:mi><mml:mi>m</mml:mi><mml:mi>a</mml:mi><mml:msub><mml:mrow><mml:mi>l</mml:mi></mml:mrow><mml:mrow><mml:mi>i</mml:mi><mml:mi>t</mml:mi></mml:mrow></mml:msub></mml:mtd></mml:mtr><mml:mtr><mml:mtd><mml:mtext>&#x02003;&#x02003;&#x02003;</mml:mtext><mml:mo>&#x0002B;</mml:mo><mml:mstyle displaystyle="true"><mml:munderover accentunder="false" accent="false"><mml:mrow><mml:mo>&#x02211;</mml:mo></mml:mrow><mml:mrow><mml:mi>j</mml:mi><mml:mo>=</mml:mo><mml:mn>1</mml:mn></mml:mrow><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:munderover></mml:mstyle><mml:msub><mml:mrow><mml:mi>&#x003B3;</mml:mi></mml:mrow><mml:mrow><mml:mi>j</mml:mi></mml:mrow></mml:msub><mml:mi>u</mml:mi><mml:mi>n</mml:mi><mml:mi>e</mml:mi><mml:mi>m</mml:mi><mml:mi>p</mml:mi><mml:mi>l</mml:mi><mml:mi>o</mml:mi><mml:mi>y</mml:mi><mml:mi>e</mml:mi><mml:msub><mml:mrow><mml:mi>d</mml:mi></mml:mrow><mml:mrow><mml:mi>j</mml:mi><mml:mi>i</mml:mi><mml:mi>t</mml:mi></mml:mrow></mml:msub><mml:mtext>&#x000A0;</mml:mtext><mml:mo>&#x0002A;</mml:mo><mml:mtext>&#x000A0;</mml:mtext><mml:mi>i</mml:mi><mml:mi>n</mml:mi><mml:mi>f</mml:mi><mml:mi>o</mml:mi><mml:mi>r</mml:mi><mml:mi>m</mml:mi><mml:mi>a</mml:mi><mml:msub><mml:mrow><mml:mi>l</mml:mi></mml:mrow><mml:mrow><mml:mi>i</mml:mi><mml:mi>t</mml:mi></mml:mrow></mml:msub><mml:mo>&#x0002B;</mml:mo><mml:mstyle displaystyle="true"><mml:munderover accentunder="false" accent="false"><mml:mrow><mml:mo>&#x02211;</mml:mo></mml:mrow><mml:mrow><mml:mi>j</mml:mi><mml:mo>=</mml:mo><mml:mn>1</mml:mn></mml:mrow><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:munderover></mml:mstyle><mml:msub><mml:mrow><mml:mi>&#x003C0;</mml:mi></mml:mrow><mml:mrow><mml:mi>j</mml:mi></mml:mrow></mml:msub><mml:mi>u</mml:mi><mml:mi>n</mml:mi><mml:mi>e</mml:mi><mml:mi>m</mml:mi><mml:mi>p</mml:mi><mml:mi>l</mml:mi><mml:mi>o</mml:mi><mml:mi>y</mml:mi><mml:mi>e</mml:mi><mml:msub><mml:mrow><mml:mi>d</mml:mi></mml:mrow><mml:mrow><mml:mi>j</mml:mi><mml:mi>i</mml:mi><mml:mi>t</mml:mi></mml:mrow></mml:msub></mml:mtd></mml:mtr><mml:mtr><mml:mtd><mml:mtext>&#x02003;&#x02003;&#x02003;</mml:mtext><mml:msub><mml:mrow><mml:mo>&#x0002A;</mml:mo><mml:mtext>&#x000A0;</mml:mtext><mml:mi>f</mml:mi><mml:mi>o</mml:mi><mml:mi>r</mml:mi><mml:mi>m</mml:mi><mml:mi>a</mml:mi><mml:mi>l</mml:mi></mml:mrow><mml:mrow><mml:mi>i</mml:mi><mml:mi>t</mml:mi></mml:mrow></mml:msub><mml:mo>&#x0002B;</mml:mo><mml:msub><mml:mrow><mml:mi>&#x003B2;</mml:mi></mml:mrow><mml:mrow><mml:mstyle mathvariant="bold"><mml:mn>4</mml:mn></mml:mstyle></mml:mrow></mml:msub><mml:msub><mml:mrow><mml:mstyle mathvariant="bold"><mml:mtext>c</mml:mtext><mml:mi>o</mml:mi><mml:mi>n</mml:mi><mml:mi>t</mml:mi><mml:mi>r</mml:mi><mml:mi>o</mml:mi><mml:mtext>l</mml:mtext></mml:mstyle></mml:mrow><mml:mrow><mml:mi>i</mml:mi><mml:mi>t</mml:mi></mml:mrow></mml:msub><mml:mo>&#x0002B;</mml:mo><mml:msub><mml:mrow><mml:mi>u</mml:mi></mml:mrow><mml:mrow><mml:mi>i</mml:mi></mml:mrow></mml:msub><mml:mo>&#x0002B;</mml:mo><mml:msub><mml:mrow><mml:mi>&#x003B5;</mml:mi></mml:mrow><mml:mrow><mml:mi>i</mml:mi><mml:mi>t</mml:mi></mml:mrow></mml:msub></mml:mtd></mml:mtr></mml:mtable></mml:math></disp-formula>
<p>In <xref ref-type="disp-formula" rid="E5">Equation (4)</xref>, <italic>unemployed</italic><sub><italic>jit</italic></sub> &#x0002A; <italic>informal</italic><sub><italic>it</italic></sub>, and <italic>unemployed</italic><sub><italic>jit</italic></sub> &#x0002A; <italic>formal</italic><sub><italic>it</italic></sub> represent the interaction terms of informal social participation and formal social participation with the <italic>j</italic>-th unemployment variable, respectively. &#x003B3;<sub><italic>j</italic></sub> represents the moderating effect of informal social participation on the relationship between <italic>j</italic>-th unemployment variable and health, and &#x003C0;<sub><italic>j</italic></sub> represents the moderating effect of formal social participation on the relationship between <italic>j</italic>-th unemployment variable and health. The other symbolic interpretations of <xref ref-type="disp-formula" rid="E5">Equation (4)</xref> are the same as those of <xref ref-type="disp-formula" rid="E3">Equation (2)</xref>.</p>
</sec></sec>
<sec id="s3">
<title>3 Data analysis results</title>
<sec>
<title>3.1 Descriptive statistics</title>
<p><xref ref-type="table" rid="T1">Table 1</xref> summarizes the characteristics of respondents in 2018. The sample includes 5,973 individuals (2,830 men and 3,143 women). Among them, 4,339 were employed, 953 experienced 0&#x02013;2 years of unemployment, 430 experienced 3&#x02013;5 years, and 251 experienced 6&#x02013;8 years. Notably, there were more men among the consistently employed, whereas more women experienced unemployment of any duration. Most respondents were married, resided in rural areas, did not have private insurance, and had not experienced child loss. Educational attainment and income levels were generally higher among men, who also reported higher rates of smoking and drinking. Regarding social participation, &#x0007E;59.0% of male respondents and 57.8% female respondents did not participate in any social activities.</p>
<table-wrap position="float" id="T1">
<label>Table 1</label>
<caption><p>Characteristics of respondents in 2018 (by unemployment status).</p></caption>
<table frame="box" rules="all">
<thead>
<tr style="background-color:#919498;color:#ffffff">
<th valign="top" align="left" rowspan="2"><bold>Status</bold></th>
<th valign="top" align="center" colspan="2"><bold>Total (</bold><italic><bold>n</bold></italic> = <bold>5,973)</bold></th>
<th valign="top" align="center" colspan="2"><bold>Employed (</bold><italic><bold>n</bold></italic> = <bold>4,339)</bold></th>
<th valign="top" align="center" colspan="2"><bold>Unemployed for 0&#x02013;2 years (</bold><italic><bold>n</bold></italic> = <bold>953)</bold></th>
<th valign="top" align="center" colspan="2"><bold>Unemployed for 3&#x02013;5 years (</bold><italic><bold>n</bold></italic> = <bold>430)</bold></th>
<th valign="top" align="center" colspan="2"><bold>Unemployed for 6&#x02013;8 years (</bold><italic><bold>n</bold></italic> = <bold>251)</bold></th>
</tr>
<tr style="background-color:#919498;color:#ffffff">
<th valign="top" align="center"><bold>Male (<italic>n</italic> = 2,830)</bold></th>
<th valign="top" align="center"><bold>Female (<italic>n</italic> = 3,143)</bold></th>
<th valign="top" align="center"><bold>Male (<italic>n</italic> = 2,252)</bold></th>
<th valign="top" align="center"><bold>Female (<italic>n</italic> = 2,087)</bold></th>
<th valign="top" align="center"><bold>Male (<italic>n</italic> = 354)</bold></th>
<th valign="top" align="center"><bold>Female (<italic>n</italic> = 599)</bold></th>
<th valign="top" align="center"><bold>Male (<italic>n</italic> = 133)</bold></th>
<th valign="top" align="center"><bold>Female (<italic>n</italic> = 297)</bold></th>
<th valign="top" align="center"><bold>Male (<italic>n</italic> = 91)</bold></th>
<th valign="top" align="center"><bold>Female (<italic>n</italic> = 160)</bold></th>
</tr>
</thead>
<tbody>
<tr style="background-color:#dee1e1">
<td valign="top" align="left" colspan="11"><bold>Demographic characteristics</bold></td>
</tr>
<tr>
<td valign="top" align="left">Age</td>
<td valign="top" align="center">64.106</td>
<td valign="top" align="center">63.375</td>
<td valign="top" align="center">62.900</td>
<td valign="top" align="center">62.011</td>
<td valign="top" align="center">67.466</td>
<td valign="top" align="center">64.977</td>
<td valign="top" align="center">70.617</td>
<td valign="top" align="center">67.226</td>
<td valign="top" align="center">71.363</td>
<td valign="top" align="center">67.931</td>
</tr>
<tr>
<td valign="top" align="left">Edu</td>
<td valign="top" align="center">6.124</td>
<td valign="top" align="center">3.326</td>
<td valign="top" align="center">6.319</td>
<td valign="top" align="center">3.448</td>
<td valign="top" align="center">5.373</td>
<td valign="top" align="center">3.215</td>
<td valign="top" align="center">5.526</td>
<td valign="top" align="center">3.061</td>
<td valign="top" align="center">5.077</td>
<td valign="top" align="center">2.644</td>
</tr>
<tr>
<td valign="top" align="left">Live city</td>
<td valign="top" align="center">0.114</td>
<td valign="top" align="center">.108</td>
<td valign="top" align="center">0.099</td>
<td valign="top" align="center">0.075</td>
<td valign="top" align="center">0.167</td>
<td valign="top" align="center">0.167</td>
<td valign="top" align="center">0.173</td>
<td valign="top" align="center">0.189</td>
<td valign="top" align="center">0.176</td>
<td valign="top" align="center">0.163</td>
</tr>
<tr style="background-color:#dee1e1">
<td valign="top" align="left" colspan="11"><bold>Family structure</bold></td>
</tr>
<tr>
<td valign="top" align="left">Married</td>
<td valign="top" align="center">0.900</td>
<td valign="top" align="center">0.815</td>
<td valign="top" align="center">0.927</td>
<td valign="top" align="center">0.866</td>
<td valign="top" align="center">0.814</td>
<td valign="top" align="center">0.761</td>
<td valign="top" align="center">0.789</td>
<td valign="top" align="center">0.643</td>
<td valign="top" align="center">0.736</td>
<td valign="top" align="center">0.675</td>
</tr>
<tr>
<td valign="top" align="left">Parent live</td>
<td valign="top" align="center">0.325</td>
<td valign="top" align="center">0.285</td>
<td valign="top" align="center">0.356</td>
<td valign="top" align="center">0.323</td>
<td valign="top" align="center">0.234</td>
<td valign="top" align="center">0.237</td>
<td valign="top" align="center">0.158</td>
<td valign="top" align="center">0.165</td>
<td valign="top" align="center">0.154</td>
<td valign="top" align="center">0.188</td>
</tr>
<tr>
<td valign="top" align="left">Child num</td>
<td valign="top" align="center">2.737</td>
<td valign="top" align="center">2.864</td>
<td valign="top" align="center">2.639</td>
<td valign="top" align="center">2.757</td>
<td valign="top" align="center">3.006</td>
<td valign="top" align="center">3.007</td>
<td valign="top" align="center">3.293</td>
<td valign="top" align="center">3.104</td>
<td valign="top" align="center">3.286</td>
<td valign="top" align="center">3.269</td>
</tr>
<tr>
<td valign="top" align="left">Lose child</td>
<td valign="top" align="center">0.242</td>
<td valign="top" align="center">0.276</td>
<td valign="top" align="center">0.229</td>
<td valign="top" align="center">0.253</td>
<td valign="top" align="center">0.271</td>
<td valign="top" align="center">0.319</td>
<td valign="top" align="center">0.361</td>
<td valign="top" align="center">0.370</td>
<td valign="top" align="center">0.297</td>
<td valign="top" align="center">0.244</td>
</tr>
<tr style="background-color:#dee1e1">
<td valign="top" align="left" colspan="11"><bold>Financial information</bold></td>
</tr>
<tr>
<td valign="top" align="left">Private</td>
<td valign="top" align="center">0.029</td>
<td valign="top" align="center">0.019</td>
<td valign="top" align="center">0.032</td>
<td valign="top" align="center">0.020</td>
<td valign="top" align="center">0.017</td>
<td valign="top" align="center">0.017</td>
<td valign="top" align="center">0.023</td>
<td valign="top" align="center">0.024</td>
<td valign="top" align="center">0.022</td>
<td valign="top" align="center">0.013</td>
</tr>
<tr>
<td valign="top" align="left">Income</td>
<td valign="top" align="center">7,507</td>
<td valign="top" align="center">2,659</td>
<td valign="top" align="center">8,626</td>
<td valign="top" align="center">2,974</td>
<td valign="top" align="center">3,696</td>
<td valign="top" align="center">1,894</td>
<td valign="top" align="center">2,777</td>
<td valign="top" align="center">2,110</td>
<td valign="top" align="center">1,579</td>
<td valign="top" align="center">2,441</td>
</tr>
<tr style="background-color:#dee1e1">
<td valign="top" align="left" colspan="11"><bold>Health -related behavior</bold></td>
</tr>
<tr>
<td valign="top" align="left">Smoke</td>
<td valign="top" align="center">0.779</td>
<td valign="top" align="center">0.071</td>
<td valign="top" align="center">0.773</td>
<td valign="top" align="center">0.067</td>
<td valign="top" align="center">0.808</td>
<td valign="top" align="center">0.085</td>
<td valign="top" align="center">0.812</td>
<td valign="top" align="center">0.067</td>
<td valign="top" align="center">0.769</td>
<td valign="top" align="center">0.075</td>
</tr>
<tr>
<td valign="top" align="left">Drink</td>
<td valign="top" align="center">0.551</td>
<td valign="top" align="center">0.129</td>
<td valign="top" align="center">0.595</td>
<td valign="top" align="center">0.148</td>
<td valign="top" align="center">0.404</td>
<td valign="top" align="center">0.093</td>
<td valign="top" align="center">0.346</td>
<td valign="top" align="center">0.111</td>
<td valign="top" align="center">0.319</td>
<td valign="top" align="center">0.063</td>
</tr>
<tr style="background-color:#dee1e1">
<td valign="top" align="left" colspan="11"><bold>Social participation</bold></td>
</tr>
<tr>
<td valign="top" align="left">None</td>
<td valign="top" align="center">0.590</td>
<td valign="top" align="center">0.578</td>
<td valign="top" align="center">0.583</td>
<td valign="top" align="center">0.592</td>
<td valign="top" align="center">0.593</td>
<td valign="top" align="center">0.559</td>
<td valign="top" align="center">0.639</td>
<td valign="top" align="center">0.522</td>
<td valign="top" align="center">0.681</td>
<td valign="top" align="center">0.569</td>
</tr>
<tr>
<td valign="top" align="left">Informal</td>
<td valign="top" align="center">0.395</td>
<td valign="top" align="center">0.409</td>
<td valign="top" align="center">0.400</td>
<td valign="top" align="center">0.393</td>
<td valign="top" align="center">0.398</td>
<td valign="top" align="center">0.431</td>
<td valign="top" align="center">0.361</td>
<td valign="top" align="center">0.465</td>
<td valign="top" align="center">0.308</td>
<td valign="top" align="center">0.419</td>
</tr>
<tr>
<td valign="top" align="left">Formal</td>
<td valign="top" align="center">0.051</td>
<td valign="top" align="center">0.035</td>
<td valign="top" align="center">0.058</td>
<td valign="top" align="center">0.039</td>
<td valign="top" align="center">0.031</td>
<td valign="top" align="center">0.023</td>
<td valign="top" align="center">0.015</td>
<td valign="top" align="center">0.04</td>
<td valign="top" align="center">0.011</td>
<td valign="top" align="center">0.013</td>
</tr></tbody>
</table>
</table-wrap>
<p>However, as unemployment duration increased in men, the non-participation rate increased; for women, the non-participation rate first decreased and then increased with longer unemployment. In addition, the study found that informal social participation was consistently more prevalent than formal participation. For respondents experiencing unemployment, women were more likely to participate in informal social activities than men. For respondents who had not experienced unemployment, men were slightly more likely to participate in informal social activities than women.</p>
<p><xref ref-type="table" rid="T2">Table 2</xref> shows the average health scores of respondents by unemployment status. The health level of unemployed men and women was lower than that of employed men and women. Notably, the health status of females was lower than that of males irrespective of employment status. In addition, the descriptive statistics showed that the health of middle-aged and older male and female respondents became worse as the duration of unemployment increased.</p>
<table-wrap position="float" id="T2">
<label>Table 2</label>
<caption><p>Average health level and unemployment status of respondents.</p></caption>
<table frame="box" rules="all">
<thead>
<tr style="background-color:#919498;color:#ffffff">
<th valign="top" align="left" rowspan="2"><bold>Employment status</bold></th>
<th valign="top" align="center" colspan="3"><bold>Last period (2018)</bold></th>
<th valign="top" align="center" colspan="3"><bold>All periods (2011&#x02013;2018)</bold></th>
</tr>
<tr style="background-color:#919498;color:#ffffff">
<th valign="top" align="center"><bold>Total (</bold><italic><bold>n</bold></italic> = <bold>5,241)</bold></th>
<th valign="top" align="center"><bold>Male (</bold><italic><bold>n</bold></italic> = <bold>2,559)</bold></th>
<th valign="top" align="center"><bold>Female (</bold><italic><bold>n</bold></italic> = <bold>2,682)</bold></th>
<th valign="top" align="center"><bold>Total (</bold><italic><bold>n</bold></italic> = <bold>16,010)</bold></th>
<th valign="top" align="center"><bold>Male (</bold><italic><bold>n</bold></italic> = <bold>7,962)</bold></th>
<th valign="top" align="center"><bold>Female (</bold><italic><bold>n</bold></italic> = <bold>8,048)</bold></th>
</tr>
</thead>
<tbody>
<tr>
<td valign="top" align="left">Total</td>
<td valign="top" align="center">&#x02212;0.132</td>
<td valign="top" align="center">0.034</td>
<td valign="top" align="center">&#x02212;0.290</td>
<td valign="top" align="center">&#x02212;0.037</td>
<td valign="top" align="center">0.109</td>
<td valign="top" align="center">&#x02212;0.182</td>
</tr>
<tr>
<td valign="top" align="left">Employed</td>
<td valign="top" align="center">&#x02212;0.025</td>
<td valign="top" align="center">0.123</td>
<td valign="top" align="center">&#x02212;0.192</td>
<td valign="top" align="center">0.030</td>
<td valign="top" align="center">0.161</td>
<td valign="top" align="center">&#x02212;0.117</td>
</tr>
<tr>
<td valign="top" align="left">Unemployed for 0&#x02013;2 years</td>
<td valign="top" align="center">&#x02212;0.388</td>
<td valign="top" align="center">&#x02212;0.283</td>
<td valign="top" align="center">&#x02212;0.453</td>
<td valign="top" align="center">&#x02212;0.284</td>
<td valign="top" align="center">&#x02212;0.169</td>
<td valign="top" align="center">&#x02212;0.351</td>
</tr>
<tr>
<td valign="top" align="left">Unemployed for 3&#x02013;5 years</td>
<td valign="top" align="center">&#x02212;0.458</td>
<td valign="top" align="center">&#x02212;0.303</td>
<td valign="top" align="center">&#x02212;0.531</td>
<td valign="top" align="center">&#x02212;0.439</td>
<td valign="top" align="center">&#x02212;0.328</td>
<td valign="top" align="center">&#x02212;0.496</td>
</tr>
<tr>
<td valign="top" align="left">Unemployed for 6&#x02013;8 years</td>
<td valign="top" align="center">&#x02212;0.626</td>
<td valign="top" align="center">&#x02212;0.610</td>
<td valign="top" align="center">&#x02212;0.636</td>
<td valign="top" align="center">&#x02212;0.626</td>
<td valign="top" align="center">&#x02212;0.610</td>
<td valign="top" align="center">&#x02212;0.636</td>
</tr></tbody>
</table>
</table-wrap>
</sec>
<sec>
<title>3.2 Regression results</title>
<sec>
<title>3.2.1 Health effects of unemployment</title>
<p><xref ref-type="table" rid="T3">Table 3</xref> reports the regression results of the fixed effects model examining the health effects of unemployment. Columns 1, 2, and 3 display the average effects of unemployment on health for different samples (two-class main effect model), respectively. In contrast, Columns 4, 5, and 6 illustrate the effects of different unemployment durations on health for different samples (four-class main effect model). According to the regression results of &#x0201C;two-class main effect model,&#x0201D; unemployment significantly reduces the health levels for both genders (&#x003B2; = &#x02212;0.166 vs. &#x003B2; = &#x02212;0.089, both <italic>p</italic> &#x0003C; 0.05). Meanwhile, the &#x0201C;four-class main effect model&#x0201D; reveals that unemployment lasting 0&#x02013;2 (&#x003B2; = &#x02212;0.162, <italic>p</italic> &#x0003C; 0.01), 3&#x02013;5 (&#x003B2; = &#x02212;0.176, <italic>p</italic> &#x0003C; 0.01), and 6&#x02013;8 (&#x003B2; = &#x02212;0.389, <italic>p</italic> &#x0003C; 0.01) years significantly diminishes health among male respondents, whereas for female respondents, significant reductions in health are observed only for unemployment durations of 0&#x02013;2 (&#x003B2; = &#x02212;0.108, <italic>p</italic> &#x0003C; 0.01) years and 3&#x02013;5 (&#x003B2; = &#x02212;0.129, <italic>p</italic> &#x0003C; 0.01) years. In addition, <xref ref-type="supplementary-material" rid="SM1">Supplementary Tables S1</xref>&#x02013;<xref ref-type="supplementary-material" rid="SM1">S3</xref> report the fixed effects regression results examining the main effects of unemployment on physical, cognitive, and psychological health separately. Similar to the composite health results, unemployment consistently shows significant negative effects on physical health across genders, weaker but still notable effects on cognitive health, and the least consistent effects on psychological health.</p>
<table-wrap position="float" id="T3">
<label>Table 3</label>
<caption><p>Main effect of unemployment on health.</p></caption>
<table frame="box" rules="all">
<thead>
<tr style="background-color:#919498;color:#ffffff">
<th valign="top" align="left" rowspan="2"><bold>Variables</bold></th>
<th valign="top" align="center" colspan="3"><bold>Main effect: Two-class</bold></th>
<th valign="top" align="center" colspan="3"><bold>Main effect: Four-class</bold></th>
</tr>
<tr style="background-color:#919498;color:#ffffff">
<th valign="top" align="center"><bold>Total</bold></th>
<th valign="top" align="center"><bold>Male</bold></th>
<th valign="top" align="center"><bold>Female</bold></th>
<th valign="top" align="center"><bold>Total</bold></th>
<th valign="top" align="center"><bold>Male</bold></th>
<th valign="top" align="center"><bold>Female</bold></th>
</tr>
</thead>
<tbody>
<tr>
<td valign="top" align="left">Unemployed</td>
<td valign="top" align="center"><bold>&#x02212;0.118</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.166</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.089</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td/>
<td/>
<td/>
</tr>
<tr>
<td/>
<td valign="top" align="center">(0.011)</td>
<td valign="top" align="center">(0.020)</td>
<td valign="top" align="center">(0.014)</td>
<td/>
<td/>
<td/>
</tr>
<tr>
<td valign="top" align="left" colspan="2">Unemployed for 0&#x02013;2 years</td>
<td/>
<td/>
<td valign="top" align="center"><bold>&#x02212;0.132</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.162</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.108</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
</tr>
<tr>
<td/>
<td/>
<td/>
<td/>
<td valign="top" align="center">(0.017)</td>
<td valign="top" align="center">(0.029)</td>
<td valign="top" align="center">(0.022)</td>
</tr>
<tr>
<td valign="top" align="left" colspan="2">Unemployed for 3&#x02013;5 years</td>
<td/>
<td/>
<td valign="top" align="center"><bold>&#x02212;0.157</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.176</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.129</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
</tr>
<tr>
<td/>
<td/>
<td/>
<td/>
<td valign="top" align="center">(0.030)</td>
<td valign="top" align="center">(0.047)</td>
<td valign="top" align="center">(0.038)</td>
</tr>
<tr>
<td valign="top" align="left" colspan="2">Unemployed for 6&#x02013;8 years</td>
<td/>
<td/>
<td valign="top" align="center"><bold>&#x02212;0.242</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.389</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">&#x02212;0.119<sup>&#x0002A;</sup></td>
</tr>
<tr>
<td/>
<td/>
<td/>
<td/>
<td valign="top" align="center">(0.051)</td>
<td valign="top" align="center">(0.082)</td>
<td valign="top" align="center">(0.066)</td>
</tr>
<tr>
<td valign="top" align="left">Informal</td>
<td valign="top" align="center"><bold>0.038</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>0.039</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>0.038</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>0.024</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">0.019<sup>&#x0002A;</sup></td>
<td valign="top" align="center"><bold>0.030</bold><sup><bold>&#x0002A;&#x0002A;</bold></sup></td>
</tr>
<tr>
<td/>
<td valign="top" align="center">(0.007)</td>
<td valign="top" align="center">(0.009)</td>
<td valign="top" align="center">(0.010)</td>
<td valign="top" align="center">(0.008)</td>
<td valign="top" align="center">(0.011)</td>
<td valign="top" align="center">(0.013)</td>
</tr>
<tr>
<td valign="top" align="left">Formal</td>
<td valign="top" align="center">&#x02212;0.001</td>
<td valign="top" align="center">&#x02212;0.001</td>
<td valign="top" align="center">&#x02212;0.002</td>
<td valign="top" align="center">&#x02212;0.026</td>
<td valign="top" align="center">&#x02212;0.001</td>
<td valign="top" align="center"><bold>&#x02212;0.064</bold><sup><bold>&#x0002A;&#x0002A;</bold></sup></td>
</tr>
<tr>
<td/>
<td valign="top" align="center">(0.014)</td>
<td valign="top" align="center">(0.016)</td>
<td valign="top" align="center">(0.024)</td>
<td valign="top" align="center">(0.017)</td>
<td valign="top" align="center">(0.019)</td>
<td valign="top" align="center">(0.031)</td>
</tr>
<tr>
<td valign="top" align="left">Observations</td>
<td valign="top" align="center">25,276</td>
<td valign="top" align="center">11,730</td>
<td valign="top" align="center">13,546</td>
<td valign="top" align="center">15,960</td>
<td valign="top" align="center">7,930</td>
<td valign="top" align="center">8,030</td>
</tr>
<tr>
<td valign="top" align="left">R-squared</td>
<td valign="top" align="center">0.065</td>
<td valign="top" align="center">0.059</td>
<td valign="top" align="center">0.075</td>
<td valign="top" align="center">0.093</td>
<td valign="top" align="center">0.082</td>
<td valign="top" align="center">0.109</td>
</tr>
<tr>
<td valign="top" align="left">Respondents</td>
<td valign="top" align="center">7,577</td>
<td valign="top" align="center">3,428</td>
<td valign="top" align="center">4,149</td>
<td valign="top" align="center">6,548</td>
<td valign="top" align="center">3,115</td>
<td valign="top" align="center">3,433</td>
</tr></tbody>
</table>
<table-wrap-foot>
<p>The table controls for age, income (logarithm), number of chronic diseases, whether they live in the city, marital status, whether their parents are alive, number of living siblings, number of living children, whether they live with their children, whether they have experienced child bereavement, whether they have private insurance, income, whether they smoke, whether they drink, and number of chronic diseases. The standard deviation in parentheses. <sup>&#x0002A;&#x0002A;&#x0002A;</sup>p &#x0003C; 0.01, <sup>&#x0002A;&#x0002A;</sup><italic>p</italic> &#x0003C; 0.05, <sup>&#x0002A;</sup><italic>p</italic> &#x0003C; 0.1 (the same below). Bold values in regression indicate statistically significant coefficients (<italic>P</italic> value &#x0003C; 0.05).</p>
</table-wrap-foot>
</table-wrap>
<p>In addition, we test the significance of the size between the coefficients. For middle-aged and older male respondents, respondents who had been unemployed for 0&#x02013;2 years had significantly lower health levels than those who remained employed, and those who had been unemployed for 3&#x02013;5 years had significantly lower health levels than those who had not lost their jobs. The health of respondents who had been unemployed for 6&#x02013;8 years was significantly lower by 0.389 than that of respondents who had not lost their jobs. In addition, unemployment for 6&#x02013;8 years was significantly more damaging than unemployment for 0&#x02013;2 years or 3&#x02013;5 years among male respondents. Therefore, the longer the unemployment length, the greater the health damage of middle-aged and older men. In contrast, for middle-aged and older women, those who were unemployed for 0&#x02013;2 and 3&#x02013;5 years also showed significantly lower health levels compared to those who remained employed. The health status of respondents who have been unemployed for 6&#x02013;8 years has no significant impact on their health status. Therefore, the impact of job loss on female respondents did not increase with the length of unemployment.</p>
<p>This study not only compared the average impact of unemployment on the health between middle-aged and older men and women, but also compared the health damage of different unemployment duration in middle-aged and older men and women. The results are shown in <xref ref-type="table" rid="T4">Table 4</xref>. It shows that the average negative health effects of unemployment are significantly greater for men than for women (<italic>p</italic> &#x0003C; 0.05), with the difference being particularly pronounced in the case of 6&#x02013;8 years of unemployment.</p>
<table-wrap position="float" id="T4">
<label>Table 4</label>
<caption><p>Gender comparison of unemployment&#x00027;s effect on health.</p></caption>
<table frame="box" rules="all">
<thead>
<tr style="background-color:#919498;color:#ffffff">
<th valign="top" align="left"><bold>Main effect</bold></th>
<th valign="top" align="center"><bold>Total</bold></th>
<th valign="top" align="center"><bold>Male</bold></th>
<th valign="top" align="center"><bold>Female</bold></th>
<th valign="top" align="center"><bold>Test statistics</bold></th>
<th valign="top" align="center"><bold><italic>p</italic>-Value</bold></th>
</tr>
</thead>
<tbody>
<tr>
<td valign="top" align="left">Unemployed</td>
<td valign="top" align="center"><bold>&#x02212;0.118</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.166</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.089</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>7.26</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">0.007</td>
</tr>
<tr>
<td valign="top" align="left">Unemployed for 0&#x02013;2 years</td>
<td valign="top" align="center"><bold>&#x02212;0.132</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.162</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.108</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">1.46</td>
<td valign="top" align="center">0.227</td>
</tr>
<tr>
<td valign="top" align="left">Unemployed for 3&#x02013;5 years</td>
<td valign="top" align="center"><bold>&#x02212;0.157</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.176</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.129</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">0.34</td>
<td valign="top" align="center">0.560</td>
</tr>
<tr>
<td valign="top" align="left">Unemployed for 6&#x02013;8 years</td>
<td valign="top" align="center"><bold>&#x02212;0.242</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.389</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02013;</bold>0.119<sup>&#x0002A;</sup></td>
<td valign="top" align="center"><bold>3.91</bold><sup><bold>&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">0.048</td>
</tr></tbody>
</table>
<table-wrap-foot>
<p>The asterisk symbols following coefficients indicate different levels of statistical significance: <sup>&#x0002A;&#x0002A;&#x0002A;</sup><italic>p</italic> &#x0003C; 0.01, <sup>&#x0002A;&#x0002A;</sup><italic>p</italic> &#x0003C; 0.05, <sup>&#x0002A;</sup><italic>p</italic> &#x0003C; 0.1. Bold values in regression indicate statistically significant coefficients (<italic>P</italic> value &#x0003C; 0.05).</p>
</table-wrap-foot>
</table-wrap>
</sec>
<sec>
<title>3.2.2 The moderating effects of social participation</title>
<p><xref ref-type="table" rid="T5">Table 5</xref> presents the moderating effects of social participation, estimated from Models (3) and (4). Informal social participation significantly buffered the average negative health impacts of unemployment for both men and women. Specifically, the interaction term between unemployment and informal social participation is positive and statistically significant for the total sample (&#x003B2; = 0.091, <italic>p</italic> &#x0003C; 0.01), for men (&#x003B2; = 0.145, <italic>p</italic> &#x0003C; 0.01), and for women (&#x003B2; = 0.067, <italic>p</italic> &#x0003C; 0.01). In contrast, the moderating effects of formal social participation were not statistically significant for either gender.</p>
<table-wrap position="float" id="T5">
<label>Table 5</label>
<caption><p>The moderating effect of social participation.</p></caption>
<table frame="box" rules="all">
<thead>
<tr style="background-color:#919498;color:#ffffff">
<th valign="top" align="left" rowspan="2"><bold>Variables</bold></th>
<th valign="top" align="center" colspan="3"><bold>Moderating effect: Two-class</bold></th>
<th valign="top" align="center" colspan="3"><bold>Moderating effect: Four-class</bold></th>
</tr>
<tr style="background-color:#919498;color:#ffffff">
<th valign="top" align="center"><bold>Total</bold></th>
<th valign="top" align="center"><bold>Male</bold></th>
<th valign="top" align="center"><bold>Female</bold></th>
<th valign="top" align="center"><bold>Total</bold></th>
<th valign="top" align="center"><bold>Male</bold></th>
<th valign="top" align="center"><bold>Female</bold></th>
</tr>
</thead>
<tbody>
<tr>
<td valign="top" align="left">Unemployed</td>
<td valign="top" align="center"><bold>&#x02212;0.161</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.233</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.122</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td/>
<td/>
<td/>
</tr>
<tr>
<td/>
<td valign="top" align="center">(0.011)</td>
<td valign="top" align="center">(0.018)</td>
<td valign="top" align="center">(0.015)</td>
<td/>
<td/>
<td/>
</tr>
<tr>
<td valign="top" align="left" colspan="2">Unemployed for 0&#x02013;2 years</td>
<td/>
<td/>
<td valign="top" align="center"><bold>&#x02212;0.166</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.208</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.134</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
</tr>
<tr>
<td/>
<td/>
<td/>
<td/>
<td valign="top" align="center">(0.017)</td>
<td valign="top" align="center">(0.025)</td>
<td valign="top" align="center">(0.024)</td>
</tr>
<tr>
<td valign="top" align="left" colspan="2">Unemployed for 3&#x02013;5 years</td>
<td/>
<td/>
<td valign="top" align="center"><bold>&#x02212;0.205</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.227</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.181</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
</tr>
<tr>
<td/>
<td/>
<td/>
<td/>
<td valign="top" align="center">(0.028)</td>
<td valign="top" align="center">(0.040)</td>
<td valign="top" align="center">(0.040)</td>
</tr>
<tr>
<td valign="top" align="left" colspan="2">Unemployed for 6&#x02013;8 years</td>
<td/>
<td/>
<td valign="top" align="center"><bold>&#x02212;0.299</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.452</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.148</bold><sup><bold>&#x0002A;&#x0002A;</bold></sup></td>
</tr>
<tr>
<td/>
<td/>
<td/>
<td/>
<td valign="top" align="center">(0.044)</td>
<td valign="top" align="center">(0.060)</td>
<td valign="top" align="center">(0.065)</td>
</tr>
<tr>
<td valign="top" align="left">Unemployed<sup>&#x0002A;</sup>informal</td>
<td valign="top" align="center"><bold>0.091</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>0.145</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>0.067</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td/>
<td/>
<td/>
</tr>
<tr>
<td/>
<td valign="top" align="center">(0.014)</td>
<td valign="top" align="center">(0.023)</td>
<td valign="top" align="center">(0.019)</td>
<td/>
<td/>
<td/>
</tr>
<tr>
<td valign="top" align="left">Unemployed<sup>&#x0002A;</sup>formal</td>
<td valign="top" align="center">0.002</td>
<td valign="top" align="center">0.001</td>
<td valign="top" align="center">0.014</td>
<td/>
<td/>
<td/>
</tr>
<tr>
<td/>
<td valign="top" align="center">(0.038)</td>
<td valign="top" align="center">(0.059)</td>
<td valign="top" align="center">(0.053)</td>
<td/>
<td/>
<td/>
</tr>
<tr>
<td valign="top" align="left" colspan="3">Unemployed for 0&#x02013;2 years<sup>&#x0002A;</sup>informal</td>
<td/>
<td valign="top" align="center"><bold>0.081</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>0.010</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>0.066</bold><sup><bold>&#x0002A;&#x0002A;</bold></sup></td>
</tr>
<tr>
<td/>
<td/>
<td/>
<td/>
<td valign="top" align="center">(0.023)</td>
<td valign="top" align="center">(0.035)</td>
<td valign="top" align="center">(0.032)</td>
</tr>
<tr>
<td valign="top" align="left" colspan="3">Unemployed for 3&#x02013;5 years<sup>&#x0002A;</sup>informal</td>
<td/>
<td valign="top" align="center"><bold>0.098</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>0.129</bold><sup><bold>&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">0.094<sup>&#x0002A;</sup></td>
</tr>
<tr>
<td/>
<td/>
<td/>
<td/>
<td valign="top" align="center">(0.038)</td>
<td valign="top" align="center">(0.060)</td>
<td valign="top" align="center">(0.051)</td>
</tr>
<tr>
<td valign="top" align="left" colspan="3">Unemployed for 6&#x02013;8 years<sup>&#x0002A;</sup>informal</td>
<td/>
<td valign="top" align="center"><bold>0.165</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>0.263</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">0.073</td>
</tr>
<tr>
<td/>
<td/>
<td/>
<td/>
<td valign="top" align="center">(0.063)</td>
<td valign="top" align="center">(0.097)</td>
<td valign="top" align="center">(0.087)</td>
</tr>
<tr>
<td valign="top" align="left" colspan="3">Unemployed for 0&#x02013;2 years<sup>&#x0002A;</sup>formal</td>
<td/>
<td valign="top" align="center">&#x02212;0.108</td>
<td valign="top" align="center">0.018</td>
<td valign="top" align="center"><bold>&#x02212;0.230</bold><sup><bold>&#x0002A;&#x0002A;</bold></sup></td>
</tr>
<tr>
<td/>
<td/>
<td/>
<td/>
<td valign="top" align="center">(0.068)</td>
<td valign="top" align="center">(0.087)</td>
<td valign="top" align="center">(0.108)</td>
</tr>
<tr>
<td valign="top" align="left" colspan="3">Unemployed for 3&#x02013;5 years<sup>&#x0002A;</sup>formal</td>
<td/>
<td valign="top" align="center">0.198<sup>&#x0002A;</sup></td>
<td valign="top" align="center">0.289</td>
<td valign="top" align="center">0.201</td>
</tr>
<tr>
<td/>
<td/>
<td/>
<td/>
<td valign="top" align="center">(0.111)</td>
<td valign="top" align="center">(0.185)</td>
<td valign="top" align="center">(0.145)</td>
</tr>
<tr>
<td valign="top" align="left" colspan="3">Unemployed for 6&#x02013;8 years<sup>&#x0002A;</sup>formal</td>
<td/>
<td valign="top" align="center">&#x02212;0.586<sup>&#x0002A;</sup></td>
<td valign="top" align="center"><bold>&#x02212;1.062</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">&#x02212;0.113</td>
</tr>
<tr>
<td/>
<td/>
<td/>
<td/>
<td valign="top" align="center">(0.301)</td>
<td valign="top" align="center">(0.393)</td>
<td valign="top" align="center">(0.458)</td>
</tr>
<tr>
<td valign="top" align="left">Informal</td>
<td valign="top" align="center"><bold>0.017</bold><sup><bold>&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">0.018<sup>&#x0002A;</sup></td>
<td valign="top" align="center">0.019<sup>&#x0002A;</sup></td>
<td valign="top" align="center">0.009</td>
<td valign="top" align="center">0.004</td>
<td valign="top" align="center">0.015</td>
</tr>
<tr>
<td/>
<td valign="top" align="center">(0.007)</td>
<td valign="top" align="center">(0.010)</td>
<td valign="top" align="center">(0.011)</td>
<td valign="top" align="center">(0.009)</td>
<td valign="top" align="center">(0.012)</td>
<td valign="top" align="center">(0.014)</td>
</tr>
<tr>
<td valign="top" align="left">Formal</td>
<td valign="top" align="center">&#x02212;0.001</td>
<td valign="top" align="center">&#x02212;0.0003</td>
<td valign="top" align="center">&#x02212;0.006</td>
<td valign="top" align="center">&#x02212;0.021</td>
<td valign="top" align="center">3.50e-05</td>
<td valign="top" align="center">&#x02212;0.056<sup>&#x0002A;</sup></td>
</tr>
<tr>
<td/>
<td valign="top" align="center">(0.016)</td>
<td valign="top" align="center">(0.019)</td>
<td valign="top" align="center">(0.029)</td>
<td valign="top" align="center">(0.019)</td>
<td valign="top" align="center">(0.022)</td>
<td valign="top" align="center">(0.034)</td>
</tr>
<tr>
<td valign="top" align="left">Observations</td>
<td valign="top" align="center">25,276</td>
<td valign="top" align="center">11,730</td>
<td valign="top" align="center">13,546</td>
<td valign="top" align="center">15,960</td>
<td valign="top" align="center">7,930</td>
<td valign="top" align="center">8,030</td>
</tr>
<tr>
<td valign="top" align="left">R-squared</td>
<td valign="top" align="center">0.068</td>
<td valign="top" align="center">0.064</td>
<td valign="top" align="center">0.076</td>
<td valign="top" align="center">0.096</td>
<td valign="top" align="center">0.087</td>
<td valign="top" align="center">0.111</td>
</tr>
<tr>
<td valign="top" align="left">Respondents</td>
<td valign="top" align="center">7,577</td>
<td valign="top" align="center">3,428</td>
<td valign="top" align="center">4,149</td>
<td valign="top" align="center">6,548</td>
<td valign="top" align="center">3,115</td>
<td valign="top" align="center">3,433</td>
</tr></tbody>
</table>
<table-wrap-foot>
<p>The asterisk symbols following coefficients indicate different levels of statistical significance: <sup>&#x0002A;&#x0002A;&#x0002A;</sup><italic>p</italic> &#x0003C; 0.01, <sup>&#x0002A;&#x0002A;</sup><italic>p</italic> &#x0003C; 0.05, <sup>&#x0002A;</sup><italic>p</italic> &#x0003C; 0.1. Bold values in regression indicate statistically significant coefficients (<italic>P</italic> value &#x0003C; 0.05).</p>
</table-wrap-foot>
</table-wrap>
<p>When analyzing the moderating effects by unemployment duration, we find that for middle-aged and older men, informal social participation significantly mitigates the health damage associated with all three durations of unemployment: 0&#x02013;2 years (&#x003B2; = 0.010, <italic>p</italic> &#x0003C; 0.01), 3&#x02013;5 years (&#x003B2; = 0.129, <italic>p</italic> &#x0003C; 0.05), and 6&#x02013;8 years (&#x003B2; = 0.263, <italic>p</italic> &#x0003C; 0.01). Moreover, the buffering effect of informal social participation becomes stronger as the duration of unemployment increases. The coefficient for the interaction term rises from 0.010 (0&#x02013;2 years) to 0.129 (3&#x02013;5 years) and further to 0.263 (6&#x02013;8 years), all statistically significant, suggesting a cumulative moderating benefit with prolonged unemployment. Interestingly, for men who were unemployed for 6&#x02013;8 years, participation in formal social activities exacerbated the negative health impact of unemployment (&#x003B2; = &#x02212;1.062, <italic>p</italic> &#x0003C; 0.001), indicating a potential adverse effect of formal participation in this context. For middle-aged and older women, only those who were unemployed for 0&#x02013;2 years experienced significant buffering effects from informal social participation (&#x003B2; = 0.066, <italic>p</italic> &#x0003C; 0.01). The interaction terms for longer durations of unemployment were not significant. Furthermore, formal social participation not only failed to moderate the health effects of unemployment for women, but in the case of 0&#x02013;2 years of unemployment, it significantly worsened health outcomes (&#x003B2; = &#x02212;0.230, <italic>p</italic> &#x0003C; 0.01).</p>
<p>In order to compare the gender differences in the moderating effects of social participation on the relationship between unemployment and health, the Wald Test (<xref ref-type="bibr" rid="B29">29</xref>) was used in this study to examine the differences in the moderating coefficients between male and female subsamples, and the results are shown in <xref ref-type="table" rid="T6">Table 6</xref>. In terms of the average health effects of unemployment, this study found that the moderating effect of informal social participation was significantly greater for men than for women (&#x003C7;<sup>2</sup> = 3.96, <italic>p</italic> &#x0003C; 0.05). However, the moderating effect of formal social participation was not significant for either gender, and there was no significant gender difference in this regard.</p>
<table-wrap position="float" id="T6">
<label>Table 6</label>
<caption><p>Gender Comparison of moderating effect of social participation.</p></caption>
<table frame="box" rules="all">
<thead>
<tr style="background-color:#919498;color:#ffffff">
<th valign="top" align="left" rowspan="2"><bold>Moderating effect</bold></th>
<th valign="top" align="center"><bold>Total</bold></th>
<th valign="top" align="center"><bold>Male</bold></th>
<th valign="top" align="center"><bold>Female</bold></th>
<th valign="top" align="center" colspan="2"><bold>Comparison</bold></th>
</tr>
<tr style="background-color:#919498;color:#ffffff">
<th valign="top" align="center"><bold>Coefficients</bold></th>
<th valign="top" align="center"><bold>Coefficients</bold></th>
<th valign="top" align="center"><bold>Coefficients</bold></th>
<th valign="top" align="center"><bold>Test statistics (</bold>&#x003C7;<sup><bold>2</bold></sup><bold>)</bold></th>
<th valign="top" align="center"><italic><bold>p</bold></italic><bold>-Value</bold></th>
</tr>
</thead>
<tbody>
<tr>
<td valign="top" align="left">Unemployed<sup>&#x0002A;</sup>informal</td>
<td valign="top" align="center"><bold>0.091</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>0.145</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>0.067</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>3.96</bold><sup><bold>&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">0.047</td>
</tr>
<tr>
<td valign="top" align="left">Unemployed<sup>&#x0002A;</sup>formal</td>
<td valign="top" align="center">0.002</td>
<td valign="top" align="center">0.001</td>
<td valign="top" align="center">0.014</td>
<td valign="top" align="center">0.02</td>
<td valign="top" align="center">0.887</td>
</tr>
<tr>
<td valign="top" align="left">Unemployed for 0&#x02013;2 years<sup>&#x0002A;</sup>informal</td>
<td valign="top" align="center"><bold>0.081</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>0.010</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>0.066</bold><sup><bold>&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">0.30</td>
<td valign="top" align="center">0.586</td>
</tr>
<tr>
<td valign="top" align="left">Unemployed for 3&#x02013;5 years<sup>&#x0002A;</sup>informal</td>
<td valign="top" align="center"><bold>0.098</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>0.129</bold><sup><bold>&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">0.094<sup>&#x0002A;</sup></td>
<td valign="top" align="center">0.12</td>
<td valign="top" align="center">0.734</td>
</tr>
<tr>
<td valign="top" align="left">Unemployed for 6&#x02013;8 years<sup>&#x0002A;</sup>informal</td>
<td valign="top" align="center"><bold>0.165</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>0.263</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">0.073</td>
<td valign="top" align="center">1.01</td>
<td valign="top" align="center">0.314</td>
</tr>
<tr>
<td valign="top" align="left">Unemployed for 0&#x02013;2 years<sup>&#x0002A;</sup>formal</td>
<td valign="top" align="center">&#x02212;0.108</td>
<td valign="top" align="center">0.018</td>
<td valign="top" align="center"><bold>&#x02212;0.230</bold><sup><bold>&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">2.47</td>
<td valign="top" align="center">0.116</td>
</tr>
<tr>
<td valign="top" align="left">Unemployed for 3&#x02013;5 years<sup>&#x0002A;</sup>formal</td>
<td valign="top" align="center">0.198<sup>&#x0002A;</sup></td>
<td valign="top" align="center">0.289</td>
<td valign="top" align="center">0.201</td>
<td valign="top" align="center">0.14</td>
<td valign="top" align="center">0.704</td>
</tr>
<tr>
<td valign="top" align="left">Unemployed for 6&#x02013;8 years<sup>&#x0002A;</sup>formal</td>
<td valign="top" align="center">&#x02212;0.586<sup>&#x0002A;</sup></td>
<td valign="top" align="center"><bold>&#x02212;1.062</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">&#x02212;0.113</td>
<td valign="top" align="center"><bold>47.40</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">0.000</td>
</tr></tbody>
</table>
<table-wrap-foot>
<p>The asterisk symbols following coefficients indicate different levels of statistical significance: <sup>&#x0002A;&#x0002A;&#x0002A;</sup><italic>p</italic> &#x0003C; 0.01, <sup>&#x0002A;&#x0002A;</sup><italic>p</italic> &#x0003C; 0.05, <sup>&#x0002A;</sup><italic>p</italic> &#x0003C; 0.1. Bold values in regression indicate statistically significant coefficients (<italic>P</italic> value &#x0003C; 0.05).</p>
</table-wrap-foot>
</table-wrap>
</sec>
</sec>
<sec>
<title>3.3 Robust tests</title>
<sec>
<title>3.3.1 Substitution of moderating variables</title>
<p>In order to test the robustness of above results, this paper constructs a social activity index. The specific construction methods of informal social activity index and formal social activity index are shown in <xref ref-type="disp-formula" rid="E6">Equation (5)</xref> and <xref ref-type="disp-formula" rid="E7">Equation (6)</xref></p>
<disp-formula id="E6"><label>(5)</label><mml:math id="M10"><mml:mtable class="eqnarray" columnalign="left"><mml:mtr><mml:mtd><mml:mi>f</mml:mi><mml:mi>o</mml:mi><mml:mi>r</mml:mi><mml:mi>m</mml:mi><mml:mi>a</mml:mi><mml:mi>l</mml:mi><mml:mtext>&#x000A0;</mml:mtext><mml:mi>i</mml:mi><mml:mi>n</mml:mi><mml:mi>d</mml:mi><mml:mi>e</mml:mi><mml:mi>x</mml:mi><mml:mo>=</mml:mo><mml:mstyle displaystyle="true"><mml:munderover accentunder="false" accent="false"><mml:mrow><mml:mo>&#x02211;</mml:mo></mml:mrow><mml:mrow><mml:mi>i</mml:mi><mml:mo>=</mml:mo><mml:mn>1</mml:mn></mml:mrow><mml:mrow><mml:mn>4</mml:mn></mml:mrow></mml:munderover></mml:mstyle><mml:mi>f</mml:mi><mml:mi>o</mml:mi><mml:mi>r</mml:mi><mml:mi>m</mml:mi><mml:mi>a</mml:mi><mml:msub><mml:mrow><mml:mi>l</mml:mi></mml:mrow><mml:mrow><mml:mi>i</mml:mi></mml:mrow></mml:msub><mml:mtext>&#x000A0;</mml:mtext><mml:mo>&#x0002A;</mml:mo><mml:mtext>&#x000A0;</mml:mtext><mml:mi>f</mml:mi><mml:mi>r</mml:mi><mml:mi>e</mml:mi><mml:mi>q</mml:mi><mml:mi>u</mml:mi><mml:mi>e</mml:mi><mml:mi>n</mml:mi><mml:mi>c</mml:mi><mml:msub><mml:mrow><mml:mi>y</mml:mi></mml:mrow><mml:mrow><mml:mi>i</mml:mi></mml:mrow></mml:msub></mml:mtd></mml:mtr></mml:mtable></mml:math></disp-formula>
<disp-formula id="E7"><label>(6)</label><mml:math id="M11"><mml:mtable class="eqnarray" columnalign="left"><mml:mtr><mml:mtd><mml:mi>i</mml:mi><mml:mi>n</mml:mi><mml:mi>f</mml:mi><mml:mi>o</mml:mi><mml:mi>r</mml:mi><mml:mi>m</mml:mi><mml:mi>a</mml:mi><mml:mi>l</mml:mi><mml:mtext>&#x000A0;</mml:mtext><mml:mi>i</mml:mi><mml:mi>n</mml:mi><mml:mi>d</mml:mi><mml:mi>e</mml:mi><mml:mi>x</mml:mi><mml:mtext>&#x000A0;</mml:mtext><mml:mo>=</mml:mo><mml:mstyle displaystyle="true"><mml:munderover accentunder="false" accent="false"><mml:mrow><mml:mo>&#x02211;</mml:mo></mml:mrow><mml:mrow><mml:mi>i</mml:mi><mml:mo>=</mml:mo><mml:mn>1</mml:mn></mml:mrow><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:munderover></mml:mstyle><mml:mi>i</mml:mi><mml:mi>n</mml:mi><mml:mi>f</mml:mi><mml:mi>o</mml:mi><mml:mi>r</mml:mi><mml:mi>m</mml:mi><mml:mi>a</mml:mi><mml:msub><mml:mrow><mml:mi>l</mml:mi></mml:mrow><mml:mrow><mml:mi>i</mml:mi></mml:mrow></mml:msub><mml:mtext>&#x000A0;</mml:mtext><mml:mo>&#x0002A;</mml:mo><mml:mtext>&#x000A0;</mml:mtext><mml:mi>f</mml:mi><mml:mi>r</mml:mi><mml:mi>e</mml:mi><mml:mi>q</mml:mi><mml:mi>u</mml:mi><mml:mi>e</mml:mi><mml:mi>n</mml:mi><mml:mi>c</mml:mi><mml:msub><mml:mrow><mml:mi>y</mml:mi></mml:mrow><mml:mrow><mml:mi>i</mml:mi></mml:mrow></mml:msub></mml:mtd></mml:mtr></mml:mtable></mml:math></disp-formula>
<p>In <xref ref-type="disp-formula" rid="E6">Equation (5)</xref>, <italic>formal index</italic> represents the level of participation in formal social activities. The variable <italic>formal</italic><sub><italic>i</italic></sub> is a binary indicator of whether the respondent engaged in the <italic>i</italic>-th formal social activity (<italic>i</italic> = 1, 2, 3, 4). <italic>frequency</italic><sub><italic>i</italic></sub> denotes the frequency of participation: 0 for &#x0201C;none,&#x0201D; 1 for &#x0201C;occasionally,&#x0201D; 2 for &#x0201C;weekly,&#x0201D; and 3 for &#x0201C;daily.&#x0201D; This index captures the intensity of formal social participation. In <xref ref-type="disp-formula" rid="E7">Equation (6)</xref>, <italic>informal index</italic> represents the degree of involvement in informal social activities. <italic>informal</italic><sub><italic>i</italic></sub> is a dummy variable indicating participation in the <italic>i</italic>-th informal social activity (<italic>i</italic> = 1, 2, 3), and <italic>frequency</italic><sub><italic>i</italic></sub> follows the same scoring scheme as above. These indices replace the previous binary indicator for social participation, enabling a more nuanced analysis of its moderating role.</p>
<p>As shown in <xref ref-type="table" rid="T7">Tables 7</xref>, <xref ref-type="table" rid="T8">8</xref>, both the regression results and coefficient comparisons are consistent with previous findings. The negative impact of unemployment on health, particularly among males, remains robust across different model specifications and classification schemes, providing initial evidence for the stability of the main effect model.</p>
<table-wrap position="float" id="T7">
<label>Table 7</label>
<caption><p>Robust test 1- Main effect of unemployment on health.</p></caption>
<table frame="box" rules="all">
<thead>
<tr style="background-color:#919498;color:#ffffff">
<th valign="top" align="left" rowspan="2"><bold>Variables</bold></th>
<th valign="top" align="center" colspan="3"><bold>Main effect: Two-class</bold></th>
<th valign="top" align="center" colspan="3"><bold>Main effect: Four-class</bold></th>
</tr>
<tr style="background-color:#919498;color:#ffffff">
<th valign="top" align="center"><bold>Total</bold></th>
<th valign="top" align="center"><bold>Male</bold></th>
<th valign="top" align="center"><bold>Female</bold></th>
<th valign="top" align="center"><bold>Total</bold></th>
<th valign="top" align="center"><bold>Male</bold></th>
<th valign="top" align="center"><bold>Female</bold></th>
</tr>
</thead>
<tbody>
<tr>
<td valign="top" align="left">Unemployed</td>
<td valign="top" align="center">&#x02013;<bold>0.114</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">&#x02013;<bold>0.185</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">&#x02013;<bold>0.082</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td/>
<td/>
<td/>
</tr>
<tr>
<td/>
<td valign="top" align="center">(0.011)</td>
<td valign="top" align="center">(0.018)</td>
<td valign="top" align="center">(0.014)</td>
<td/>
<td/>
<td/>
</tr>
<tr>
<td valign="top" align="left" colspan="2">Unemployed for 0&#x02013;2 years</td>
<td/>
<td/>
<td valign="top" align="center">&#x02013;<bold>0.143</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">&#x02013;<bold>0.194</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">&#x02013;<bold>0.113</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
</tr>
<tr>
<td/>
<td/>
<td/>
<td/>
<td valign="top" align="center">(0.016)</td>
<td valign="top" align="center">(0.026)</td>
<td valign="top" align="center">(0.021)</td>
</tr>
<tr>
<td valign="top" align="left" colspan="2">Unemployed for 3&#x02013;5 years</td>
<td/>
<td/>
<td valign="top" align="center">&#x02013;<bold>0.176</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">&#x02013;<bold>0.231</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">&#x02013;<bold>0.133</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
</tr>
<tr>
<td/>
<td/>
<td/>
<td/>
<td valign="top" align="center">(0.030)</td>
<td valign="top" align="center">(0.054)</td>
<td valign="top" align="center">(0.038)</td>
</tr>
<tr>
<td valign="top" align="left" colspan="2">Unemployed for 6&#x02013;8 years</td>
<td/>
<td/>
<td valign="top" align="center">&#x02013;<bold>0.175</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.328</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">&#x02212;0.083</td>
</tr>
<tr>
<td/>
<td/>
<td/>
<td/>
<td valign="top" align="center">(0.052)</td>
<td valign="top" align="center">(0.087)</td>
<td valign="top" align="center">(0.067)</td>
</tr>
<tr>
<td valign="top" align="left">Informal index</td>
<td valign="top" align="center"><bold>0.014</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>0.014</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>0.015</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>0.008</bold><sup><bold>&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">0.004</td>
<td valign="top" align="center"><bold>0.011</bold><sup><bold>&#x0002A;&#x0002A;</bold></sup></td>
</tr>
<tr>
<td/>
<td valign="top" align="center">(0.002)</td>
<td valign="top" align="center">(0.003)</td>
<td valign="top" align="center">(0.003)</td>
<td valign="top" align="center">(0.003)</td>
<td valign="top" align="center">(0.004)</td>
<td valign="top" align="center">(0.004)</td>
</tr>
<tr>
<td valign="top" align="left">Formal index</td>
<td valign="top" align="center">0.007</td>
<td valign="top" align="center">0.014</td>
<td valign="top" align="center">&#x02212;0.002</td>
<td valign="top" align="center">&#x02212;0.002</td>
<td valign="top" align="center">0.018</td>
<td valign="top" align="center">&#x02212;0.030<sup>&#x0002A;</sup></td>
</tr>
<tr>
<td/>
<td valign="top" align="center">(0.008)</td>
<td valign="top" align="center">(0.009)</td>
<td valign="top" align="center">(0.013)</td>
<td valign="top" align="center">(0.010)</td>
<td valign="top" align="center">(0.011)</td>
<td valign="top" align="center">(0.016)</td>
</tr>
<tr>
<td valign="top" align="left">Observations</td>
<td valign="top" align="center">18,716</td>
<td valign="top" align="center">8,588</td>
<td valign="top" align="center">10,128</td>
<td valign="top" align="center">11,739</td>
<td valign="top" align="center">5,675</td>
<td valign="top" align="center">6,064</td>
</tr>
<tr>
<td valign="top" align="left">R-squared</td>
<td valign="top" align="center">0.047</td>
<td valign="top" align="center">0.049</td>
<td valign="top" align="center">0.053</td>
<td valign="top" align="center">0.078</td>
<td valign="top" align="center">0.064</td>
<td valign="top" align="center">0.097</td>
</tr>
<tr>
<td valign="top" align="left">Respondents</td>
<td valign="top" align="center">6,264</td>
<td valign="top" align="center">2,840</td>
<td valign="top" align="center">3,424</td>
<td valign="top" align="center">5,181</td>
<td valign="top" align="center">2,429</td>
<td valign="top" align="center">2,752</td>
</tr></tbody>
</table>
<table-wrap-foot>
<p>The asterisk symbols following coefficients indicate different levels of statistical significance: <sup>&#x0002A;&#x0002A;&#x0002A;</sup><italic>p</italic> &#x0003C; 0.01, <sup>&#x0002A;&#x0002A;</sup><italic>p</italic> &#x0003C; 0.05, <sup>&#x0002A;</sup><italic>p</italic> &#x0003C; 0.1. Bold values in regression indicate statistically significant coefficients (<italic>P</italic> value &#x0003C; 0.05).</p>
</table-wrap-foot>
</table-wrap>
<table-wrap position="float" id="T8">
<label>Table 8</label>
<caption><p>Robust test 1- Gender comparison of unemployment&#x00027;s effect on health.</p></caption>
<table frame="box" rules="all">
<thead>
<tr style="background-color:#919498;color:#ffffff">
<th valign="top" align="left"><bold>Main effect</bold></th>
<th valign="top" align="center"><bold>Total</bold></th>
<th valign="top" align="center"><bold>Male</bold></th>
<th valign="top" align="center"><bold>Female</bold></th>
<th valign="top" align="center"><bold>Test statistics (&#x003C7;<sup>2</sup>)</bold></th>
<th valign="top" align="center"><bold><italic>p</italic>-Value</bold></th>
</tr>
</thead>
<tbody>
<tr>
<td valign="top" align="left">Unemployed</td>
<td valign="top" align="center"><bold>&#x02212;0.114</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.185</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.082</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>7.25</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">0.007</td>
</tr>
<tr>
<td valign="top" align="left">Unemployed for 0&#x02013;2 years</td>
<td valign="top" align="center"><bold>&#x02212;0.143</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.194</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.113</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">1.80</td>
<td valign="top" align="center">0.179</td>
</tr>
<tr>
<td valign="top" align="left">Unemployed for 3&#x02013;5 years</td>
<td valign="top" align="center"><bold>&#x02212;0.176</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.231</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.133</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">0.66</td>
<td valign="top" align="center">0.416</td>
</tr>
<tr>
<td valign="top" align="left">Unemployed for 6&#x02013;8 years</td>
<td valign="top" align="center"><bold>&#x02212;0.175</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.328</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">&#x02212;0.083</td>
<td valign="top" align="center">0.98</td>
<td valign="top" align="center">0.323</td>
</tr></tbody>
</table>
<table-wrap-foot>
<p><sup>&#x0002A;&#x0002A;&#x0002A;</sup><italic>p</italic> &#x0003C; 0.01 (statistically significant at the 1% level). Bold values in regression indicate statistically significant coefficients (<italic>P</italic> value &#x0003C; 0.05).</p>
</table-wrap-foot>
</table-wrap>
<p>It can be seen from <xref ref-type="table" rid="T9">Tables 9</xref>, <xref ref-type="table" rid="T10">10</xref> that in the moderating effect model, the informal social activity index can reduce the average health damage of unemployment. Formal social activity can&#x00027;t reduce the average health damage of unemployment. The buffering effect of the informal social activity index on the health costs of unemployment was significantly greater in men than in women. In the Four-class model, the health damage of 0&#x02013;2 years of unemployment, 3&#x02013;5 years of unemployment and 6&#x02013;8 years of unemployment on men can be significantly buffered by the informal social activity index. For men, the negative effects of 6&#x02013;8 years of unemployment on health are amplified by formal social participation. For women, the informal social activity index moderates the health damage of unemployment for 0&#x02013;2 years or 3&#x02013;5 years, and the negative health effects of unemployment for 0&#x02013;2 years are amplified by the formal social participation index. In <xref ref-type="table" rid="T10">Table 10</xref>, the results of the comparison between the moderating coefficients are consistent with those obtained in the previous analysis. Therefore, these results preliminarily indicate that the moderating effect results of this study are robust.</p>
<table-wrap position="float" id="T9">
<label>Table 9</label>
<caption><p>Robust test 1- Moderating effect of social participation.</p></caption>
<table frame="box" rules="all">
<thead>
<tr style="background-color:#919498;color:#ffffff">
<th valign="top" align="left" rowspan="2"><bold>Variables</bold></th>
<th valign="top" align="center" colspan="3"><bold>Moderating effect: Two-class</bold></th>
<th valign="top" align="center" colspan="3"><bold>Moderating effect: Four-class</bold></th>
</tr>
<tr style="background-color:#919498;color:#ffffff">
<th valign="top" align="center"><bold>Total</bold></th>
<th valign="top" align="center"><bold>Male</bold></th>
<th valign="top" align="center"><bold>Female</bold></th>
<th valign="top" align="center"><bold>Total</bold></th>
<th valign="top" align="center"><bold>Male</bold></th>
<th valign="top" align="center"><bold>Female</bold></th>
</tr>
</thead>
<tbody>
<tr>
<td valign="top" align="left">Unemployed</td>
<td valign="top" align="center"><bold>&#x02212;0.149</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.217</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.110</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td/>
<td/>
<td/>
</tr>
<tr>
<td/>
<td valign="top" align="center">(0.011)</td>
<td valign="top" align="center">(0.016)</td>
<td valign="top" align="center">(0.014)</td>
<td/>
<td/>
<td/>
</tr>
<tr>
<td valign="top" align="left" colspan="2">Unemployed for 0&#x02013;2 years</td>
<td/>
<td/>
<td valign="top" align="center"><bold>&#x02212;0.163</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.210</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.130</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
</tr>
<tr>
<td/>
<td/>
<td/>
<td/>
<td valign="top" align="center">(0.016)</td>
<td valign="top" align="center">(0.024)</td>
<td valign="top" align="center">(0.022)</td>
</tr>
<tr>
<td valign="top" align="left" colspan="2">Unemployed for 3&#x02013;5 years</td>
<td/>
<td/>
<td valign="top" align="center"><bold>&#x02212;0.199</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.210</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.181</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
</tr>
<tr>
<td/>
<td/>
<td/>
<td/>
<td valign="top" align="center">(0.027)</td>
<td valign="top" align="center">(0.039)</td>
<td valign="top" align="center">(0.037)</td>
</tr>
<tr>
<td valign="top" align="left" colspan="2">Unemployed for 6&#x02013;8 years</td>
<td/>
<td/>
<td valign="top" align="center"><bold>&#x02212;0.277</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.449</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.127</bold><sup><bold>&#x0002A;&#x0002A;</bold></sup></td>
</tr>
<tr>
<td/>
<td/>
<td/>
<td/>
<td valign="top" align="center">(0.042)</td>
<td valign="top" align="center">(0.059)</td>
<td valign="top" align="center">(0.060)</td>
</tr>
<tr>
<td valign="top" align="left">Unemployed<sup>&#x0002A;</sup>informal index</td>
<td valign="top" align="center"><bold>0.024</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>0.039</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>0.015</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td/>
<td/>
<td/>
</tr>
<tr>
<td/>
<td valign="top" align="center">(0.004)</td>
<td valign="top" align="center">(0.007)</td>
<td valign="top" align="center">(0.006)</td>
<td/>
<td/>
<td/>
</tr>
<tr>
<td valign="top" align="left">Unemployed<sup>&#x0002A;</sup>formal index</td>
<td valign="top" align="center">&#x02212;0.013</td>
<td valign="top" align="center">&#x02212;0.0001</td>
<td valign="top" align="center">&#x02212;0.008</td>
<td/>
<td/>
<td/>
</tr>
<tr>
<td/>
<td valign="top" align="center">(0.018)</td>
<td valign="top" align="center">(0.030)</td>
<td valign="top" align="center">(0.024)</td>
<td/>
<td/>
<td/>
</tr>
<tr>
<td valign="top" align="left" colspan="3">Unemployed for 0&#x02013;2 years<sup>&#x0002A;</sup>informal index</td>
<td/>
<td valign="top" align="center"><bold>0.028</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>0.037</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>0.022</bold><sup><bold>&#x0002A;&#x0002A;</bold></sup></td>
</tr>
<tr>
<td/>
<td/>
<td/>
<td/>
<td valign="top" align="center">(0.007)</td>
<td valign="top" align="center">(0.011)</td>
<td valign="top" align="center">(0.010)</td>
</tr>
<tr>
<td valign="top" align="left" colspan="3">Unemployed for 3&#x02013;5 years<sup>&#x0002A;</sup>informal index</td>
<td/>
<td valign="top" align="center"><bold>0.033</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">0.033<sup>&#x0002A;</sup></td>
<td valign="top" align="center"><bold>0.036</bold><sup><bold>&#x0002A;&#x0002A;</bold></sup></td>
</tr>
<tr>
<td/>
<td/>
<td/>
<td/>
<td valign="top" align="center">(0.011)</td>
<td valign="top" align="center">(0.018)</td>
<td valign="top" align="center">(0.015)</td>
</tr>
<tr>
<td valign="top" align="left" colspan="3">Unemployed for 6&#x02013;8 years<sup>&#x0002A;</sup>informal index</td>
<td/>
<td valign="top" align="center"><bold>0.042</bold><sup><bold>&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>0.077</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">0.015</td>
</tr>
<tr>
<td/>
<td/>
<td/>
<td/>
<td valign="top" align="center">(0.018)</td>
<td valign="top" align="center">(0.027)</td>
<td valign="top" align="center">(0.025)</td>
</tr>
<tr>
<td valign="top" align="left" colspan="3">Unemployed for 0&#x02013;2 years<sup>&#x0002A;</sup>formal index</td>
<td/>
<td valign="top" align="center">&#x02212;0.067<sup>&#x0002A;</sup></td>
<td valign="top" align="center">0.029</td>
<td valign="top" align="center"><bold>&#x02212;0.133</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
</tr>
<tr>
<td/>
<td/>
<td/>
<td/>
<td valign="top" align="center">(0.035)</td>
<td valign="top" align="center">(0.049)</td>
<td valign="top" align="center">(0.051)</td>
</tr>
<tr>
<td valign="top" align="left" colspan="3">Unemployed for 3&#x02013;5 years<sup>&#x0002A;</sup>formal index</td>
<td/>
<td valign="top" align="center">0.041</td>
<td valign="top" align="center">0.119</td>
<td valign="top" align="center">0.049</td>
</tr>
<tr>
<td/>
<td/>
<td/>
<td/>
<td valign="top" align="center">(0.049)</td>
<td valign="top" align="center">(0.107)</td>
<td valign="top" align="center">(0.059)</td>
</tr>
<tr>
<td valign="top" align="left" colspan="3">Unemployed for 6&#x02013;8 years<sup>&#x0002A;</sup>formal index</td>
<td/>
<td valign="top" align="center"><bold>&#x02212;0.642</bold><sup><bold>&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;1.059</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">&#x02212;0.211</td>
</tr>
<tr>
<td/>
<td/>
<td/>
<td/>
<td valign="top" align="center">(0.300)</td>
<td valign="top" align="center">(0.392)</td>
<td valign="top" align="center">(0.455)</td>
</tr>
<tr>
<td valign="top" align="left">Informal index</td>
<td valign="top" align="center"><bold>0.010</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>0.007</bold><sup><bold>&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>0.013</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">0.004</td>
<td valign="top" align="center">0.0004</td>
<td valign="top" align="center">0.008<sup>&#x0002A;</sup></td>
</tr>
<tr>
<td/>
<td valign="top" align="center">(0.002)</td>
<td valign="top" align="center">(0.003)</td>
<td valign="top" align="center">(0.003)</td>
<td valign="top" align="center">(0.003)</td>
<td valign="top" align="center">(0.004)</td>
<td valign="top" align="center">(0.005)</td>
</tr>
<tr>
<td valign="top" align="left">Formal index</td>
<td valign="top" align="center">0.007</td>
<td valign="top" align="center">0.011</td>
<td valign="top" align="center">&#x02212;0.0005</td>
<td valign="top" align="center">&#x02212;0.005</td>
<td valign="top" align="center">0.006</td>
<td valign="top" align="center">&#x02212;0.023</td>
</tr>
<tr>
<td/>
<td valign="top" align="center">(0.008)</td>
<td valign="top" align="center">(0.009)</td>
<td valign="top" align="center">(0.014)</td>
<td valign="top" align="center">(0.009)</td>
<td valign="top" align="center">(0.011)</td>
<td valign="top" align="center">(0.017)</td>
</tr>
<tr>
<td valign="top" align="left">Observations</td>
<td valign="top" align="center">25,276</td>
<td valign="top" align="center">11,730</td>
<td valign="top" align="center">13,546</td>
<td valign="top" align="center">15,960</td>
<td valign="top" align="center">7,930</td>
<td valign="top" align="center">8,030</td>
</tr>
<tr>
<td valign="top" align="left">R-squared</td>
<td valign="top" align="center">0.069</td>
<td valign="top" align="center">0.064</td>
<td valign="top" align="center">0.077</td>
<td valign="top" align="center">0.096</td>
<td valign="top" align="center">0.087</td>
<td valign="top" align="center">0.113</td>
</tr>
<tr>
<td valign="top" align="left">Respondents</td>
<td valign="top" align="center">7,577</td>
<td valign="top" align="center">3,428</td>
<td valign="top" align="center">4,149</td>
<td valign="top" align="center">6,548</td>
<td valign="top" align="center">3,115</td>
<td valign="top" align="center">3,433</td>
</tr></tbody>
</table>
<table-wrap-foot>
<p>The asterisk symbols following coefficients indicate different levels of statistical significance: <sup>&#x0002A;&#x0002A;&#x0002A;</sup><italic>p</italic> &#x0003C; 0.01, <sup>&#x0002A;&#x0002A;</sup><italic>p</italic> &#x0003C; 0.05, <sup>&#x0002A;</sup><italic>p</italic> &#x0003C; 0.1. Bold values in regression indicate statistically significant coefficients (<italic>P</italic> value &#x0003C; 0.05).</p>
</table-wrap-foot>
</table-wrap>
<table-wrap position="float" id="T10">
<label>Table 10</label>
<caption><p>Robust test 1-Gender comparison of moderating effect of social participation.</p></caption>
<table frame="box" rules="all">
<thead>
<tr style="background-color:#919498;color:#ffffff">
<th valign="top" align="left" rowspan="2"><bold>Moderating effect</bold></th>
<th valign="top" align="center"><bold>Total</bold></th>
<th valign="top" align="center"><bold>Male</bold></th>
<th valign="top" align="center"><bold>Female</bold></th>
<th valign="top" align="center" colspan="2"><bold>Comparison</bold></th>
</tr>
<tr style="background-color:#919498;color:#ffffff">
<th valign="top" align="center"><bold>Coefficients</bold></th>
<th valign="top" align="center"><bold>Coefficients</bold></th>
<th valign="top" align="center"><bold>Coefficients</bold></th>
<th valign="top" align="center"><bold>Test statistics (</bold>&#x003C7;<sup><bold>2</bold></sup><bold>)</bold></th>
<th valign="top" align="center"><italic><bold>p</bold></italic><bold>-Value</bold></th>
</tr>
</thead>
<tbody>
<tr>
<td valign="top" align="left">Unemployed<sup>&#x0002A;</sup>informal index</td>
<td valign="top" align="center"><bold>0.024</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>0.039</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>0.015</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>4.94</bold><sup><bold>&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">0.026</td>
</tr>
<tr>
<td valign="top" align="left">Unemployed<sup>&#x0002A;</sup>formal index</td>
<td valign="top" align="center">&#x02212;0.013</td>
<td valign="top" align="center">&#x02212;0.0001</td>
<td valign="top" align="center">&#x02212;0.008</td>
<td valign="top" align="center">0.04</td>
<td valign="top" align="center">0.834</td>
</tr>
<tr>
<td valign="top" align="left">Unemployed for 0&#x02013;2 years<sup>&#x0002A;</sup>informal index</td>
<td valign="top" align="center"><bold>0.028</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>0.037</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>0.022</bold><sup><bold>&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">0.70</td>
<td valign="top" align="center">0.403</td>
</tr>
<tr>
<td valign="top" align="left">Unemployed for 3&#x02013;5 years<sup>&#x0002A;</sup>informal index</td>
<td valign="top" align="center"><bold>0.033</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">0.033<sup>&#x0002A;</sup></td>
<td valign="top" align="center"><bold>0.036</bold><sup><bold>&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">0.01</td>
<td valign="top" align="center">0.921</td>
</tr>
<tr>
<td valign="top" align="left">Unemployed for 6&#x02013;8 years<sup>&#x0002A;</sup>informal index</td>
<td valign="top" align="center"><bold>0.042</bold><sup><bold>&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>0.077</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">0.015</td>
<td valign="top" align="center">1.29</td>
<td valign="top" align="center">0.256</td>
</tr>
<tr>
<td valign="top" align="left">Unemployed for 0&#x02013;2 years<sup>&#x0002A;</sup>formal index</td>
<td valign="top" align="center">&#x02212;0.067<sup>&#x0002A;</sup></td>
<td valign="top" align="center">0.029</td>
<td valign="top" align="center"><bold>&#x02212;0.133</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>5.69</bold><sup><bold>&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">0.017</td>
</tr>
<tr>
<td valign="top" align="left">Unemployed for 3&#x02013;5 years<sup>&#x0002A;</sup>formal index</td>
<td valign="top" align="center">0.041</td>
<td valign="top" align="center">0.119</td>
<td valign="top" align="center">0.049</td>
<td valign="top" align="center">0.34</td>
<td valign="top" align="center">0.561</td>
</tr>
<tr>
<td valign="top" align="left">Unemployed for 6&#x02013;8 years<sup>&#x0002A;</sup>formal index</td>
<td valign="top" align="center"><bold>&#x02212;0.642</bold><sup><bold>&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;1.059</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">&#x02212;0.211</td>
<td valign="top" align="center"><bold>46.02</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">0.000</td>
</tr></tbody>
</table>
<table-wrap-foot>
<p>The asterisk symbols following coefficients indicate different levels of statistical significance: <sup>&#x0002A;&#x0002A;&#x0002A;</sup><italic>p</italic> &#x0003C; 0.01, <sup>&#x0002A;&#x0002A;</sup><italic>p</italic> &#x0003C; 0.05, <sup>&#x0002A;</sup><italic>p</italic> &#x0003C; 0.1. Bold values in regression indicate statistically significant coefficients (<italic>P</italic> value &#x0003C; 0.05).</p>
</table-wrap-foot>
</table-wrap>
<p>Taken together, the results from <xref ref-type="table" rid="T7">Tables 7</xref>&#x02013;<xref ref-type="table" rid="T10">10</xref> preliminarily indicate that the moderating effects observed in our study are robust when the dummy variable for social participation is replaced with a more nuanced index of participation intensity.</p>
</sec>
<sec>
<title>3.3.2 Substitution of samples</title>
<p>In our primary analysis, we excluded respondents who were retired and included people &#x0003C; 80 years old due to that the majority of our rural sample continues working past the typical retirement age. But the effects of unemployment might differ before and after retirement. To test the robustness of our findings, we conducted a separate analysis using 65 years as the age cutoff, thereby focusing exclusively on the effects of unemployment among individuals below 65.</p>
<p>As shown in <xref ref-type="table" rid="T11">Tables 11</xref>, <xref ref-type="table" rid="T12">12</xref>, for men, the negative effects of unemployment on health will increase with the increase of unemployment duration. Consistent with the previous results, this phenomenon is not present in women, and women who have been unemployed for 6&#x02013;8 years have worse health than women who have not experienced unemployment, but it is not significant. In addition, the average damage to men&#x00027;s health from losing a job was greater than that to women&#x00027;s, but the difference in the impact of unemployment on men&#x00027;s and women&#x00027;s health was not significant in terms of different length of unemployment. In general, the results of main effect regression are robust.</p>
<table-wrap position="float" id="T11">
<label>Table 11</label>
<caption><p>Robust test 2- Main effect of unemployment on health.</p></caption>
<table frame="box" rules="all">
<thead>
<tr style="background-color:#919498;color:#ffffff">
<th valign="top" align="left" rowspan="2"><bold>Variables</bold></th>
<th valign="top" align="center" colspan="3"><bold>Main effect: Two-class</bold></th>
<th valign="top" align="center" colspan="3"><bold>Main effect: Four-class</bold></th>
</tr>
<tr style="background-color:#919498;color:#ffffff">
<th valign="top" align="center"><bold>Total</bold></th>
<th valign="top" align="center"><bold>Male</bold></th>
<th valign="top" align="center"><bold>Female</bold></th>
<th valign="top" align="center"><bold>Total</bold></th>
<th valign="top" align="center"><bold>Male</bold></th>
<th valign="top" align="center"><bold>Female</bold></th>
</tr>
</thead>
<tbody>
<tr>
<td valign="top" align="left">Unemployed</td>
<td valign="top" align="center"><bold>&#x02212;0.113</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.185</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.082</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td/>
<td/>
<td/>
</tr>
<tr>
<td/>
<td valign="top" align="center">(0.011)</td>
<td valign="top" align="center">(0.018)</td>
<td valign="top" align="center">(0.014)</td>
<td/>
<td/>
<td/>
</tr>
<tr>
<td valign="top" align="left" colspan="2">Unemployed for 0&#x02013;2 years</td>
<td/>
<td/>
<td valign="top" align="center"><bold>&#x02212;0.143</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.194</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.114</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
</tr>
<tr>
<td/>
<td/>
<td/>
<td/>
<td valign="top" align="center">(0.016)</td>
<td valign="top" align="center">(0.026)</td>
<td valign="top" align="center">(0.021)</td>
</tr>
<tr>
<td valign="top" align="left" colspan="2">Unemployed for 3&#x02013;5 years</td>
<td/>
<td/>
<td valign="top" align="center"><bold>&#x02212;0.176</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.229</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.133</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
</tr>
<tr>
<td/>
<td/>
<td/>
<td/>
<td valign="top" align="center">(0.030)</td>
<td valign="top" align="center">(0.054)</td>
<td valign="top" align="center">(0.038)</td>
</tr>
<tr>
<td valign="top" align="left" colspan="2">Unemployed for 6&#x02013;8 years</td>
<td/>
<td/>
<td valign="top" align="center"><bold>&#x02212;0.175</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.327</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">&#x02212;0.084</td>
</tr>
<tr>
<td/>
<td/>
<td/>
<td/>
<td valign="top" align="center">(0.052)</td>
<td valign="top" align="center">(0.087)</td>
<td valign="top" align="center">(0.067)</td>
</tr>
<tr>
<td valign="top" align="left">Informal</td>
<td valign="top" align="center"><bold>0.031</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>0.036</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>0.028</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>0.022</bold><sup><bold>&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">0.019</td>
<td valign="top" align="center">0.025<sup>&#x0002A;</sup></td>
</tr>
<tr>
<td/>
<td valign="top" align="center">(0.007)</td>
<td valign="top" align="center">(0.010)</td>
<td valign="top" align="center">(0.010)</td>
<td valign="top" align="center">(0.010)</td>
<td valign="top" align="center">(0.013)</td>
<td valign="top" align="center">(0.015)</td>
</tr>
<tr>
<td valign="top" align="left">Formal</td>
<td valign="top" align="center">0.002</td>
<td valign="top" align="center">0.006</td>
<td valign="top" align="center">&#x02212;0.005</td>
<td valign="top" align="center">&#x02212;0.012</td>
<td valign="top" align="center">0.023</td>
<td valign="top" align="center">&#x02212;0.063<sup>&#x0002A;</sup></td>
</tr>
<tr>
<td/>
<td valign="top" align="center">(0.016)</td>
<td valign="top" align="center">(0.019)</td>
<td valign="top" align="center">(0.026)</td>
<td valign="top" align="center">(0.019)</td>
<td valign="top" align="center">(0.022)</td>
<td valign="top" align="center">(0.034)</td>
</tr>
<tr>
<td valign="top" align="left">Observations</td>
<td valign="top" align="center">18,716</td>
<td valign="top" align="center">8,588</td>
<td valign="top" align="center">10,128</td>
<td valign="top" align="center">11,739</td>
<td valign="top" align="center">5,675</td>
<td valign="top" align="center">6,064</td>
</tr>
<tr>
<td valign="top" align="left">R-squared</td>
<td valign="top" align="center">0.046</td>
<td valign="top" align="center">0.047</td>
<td valign="top" align="center">0.051</td>
<td valign="top" align="center">0.078</td>
<td valign="top" align="center">0.064</td>
<td valign="top" align="center">0.096</td>
</tr>
<tr>
<td valign="top" align="left">Respondents</td>
<td valign="top" align="center">6,264</td>
<td valign="top" align="center">2,840</td>
<td valign="top" align="center">3,424</td>
<td valign="top" align="center">5,181</td>
<td valign="top" align="center">2,429</td>
<td valign="top" align="center">2,752</td>
</tr></tbody>
</table>
<table-wrap-foot>
<p>The asterisk symbols following coefficients indicate different levels of statistical significance: <sup>&#x0002A;&#x0002A;&#x0002A;</sup><italic>p</italic> &#x0003C; 0.01, <sup>&#x0002A;&#x0002A;</sup><italic>p</italic> &#x0003C; 0.05, <sup>&#x0002A;</sup><italic>p</italic> &#x0003C; 0.1. Bold values in regression indicate statistically significant coefficients (<italic>P</italic> value &#x0003C; 0.05).</p>
</table-wrap-foot>
</table-wrap>
<table-wrap position="float" id="T12">
<label>Table 12</label>
<caption><p>Robust test 2- Gender comparison of unemployment&#x00027;s effect on health.</p></caption>
<table frame="box" rules="all">
<thead>
<tr style="background-color:#919498;color:#ffffff">
<th valign="top" align="left"><bold>Main effect</bold></th>
<th valign="top" align="center"><bold>Total</bold></th>
<th valign="top" align="center"><bold>Male</bold></th>
<th valign="top" align="center"><bold>Female</bold></th>
<th valign="top" align="center"><bold>Test statistics (&#x003C7;<sup>2</sup>)</bold></th>
<th valign="top" align="center"><bold><italic>p</italic>-Value</bold></th>
</tr>
</thead>
<tbody>
<tr>
<td valign="top" align="left">Unemployed</td>
<td valign="top" align="center"><bold>&#x02212;0.113</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.185</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.082</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>7.23</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">0.007</td>
</tr>
<tr>
<td valign="top" align="left">Unemployed for 0&#x02013;2 years</td>
<td valign="top" align="center"><bold>&#x02212;0.143</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.194</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.114</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">1.77</td>
<td valign="top" align="center">0.183</td>
</tr>
<tr>
<td valign="top" align="left">Unemployed for 3&#x02013;5 years</td>
<td valign="top" align="center"><bold>&#x02212;0.176</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.229</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.133</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">0.65</td>
<td valign="top" align="center">0.422</td>
</tr>
<tr>
<td valign="top" align="left">Unemployed for 6&#x02013;8 years</td>
<td valign="top" align="center"><bold>&#x02212;0.175</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.327</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">&#x02212;0.084</td>
<td valign="top" align="center">0.97</td>
<td valign="top" align="center">0.324</td>
</tr></tbody>
</table>
<table-wrap-foot>
<p><sup>&#x0002A;&#x0002A;&#x0002A;</sup><italic>p</italic> &#x0003C; 0.01 (statistically significant at the 1% level). Bold values in regression indicate statistically significant coefficients (<italic>P</italic> value &#x0003C; 0.05).</p>
</table-wrap-foot>
</table-wrap>
<p><xref ref-type="table" rid="T13">Tables 13</xref>, <xref ref-type="table" rid="T14">14</xref> shows the robustness test of the moderating effect by changing samples. Since there are no respondents in the sample aged 65 and below who have been unemployed for 6&#x02013;8 years and participated in informal social activities, Therefore, the study was unable to capture the buffering effect of formal social participation on the health damage of unemployment for 6&#x02013;8 years. Overall, the results from the substitution of samples confirm that both the main effects and the moderating effects of social participation on the relationship between unemployment and health are robust, regardless of the sample restrictions.</p>
<table-wrap position="float" id="T13">
<label>Table 13</label>
<caption><p>Robust test 2- Moderating effect of social participation.</p></caption>
<table frame="box" rules="all">
<thead>
<tr style="background-color:#919498;color:#ffffff">
<th valign="top" align="left" rowspan="2"><bold>Variables</bold></th>
<th valign="top" align="center" colspan="3"><bold>Moderating effect: Two-class</bold></th>
<th valign="top" align="center" colspan="3"><bold>Moderating effect: Four-class</bold></th>
</tr>
<tr style="background-color:#919498;color:#ffffff">
<th valign="top" align="center"><bold>Total</bold></th>
<th valign="top" align="center"><bold>Male</bold></th>
<th valign="top" align="center"><bold>Female</bold></th>
<th valign="top" align="center"><bold>Total</bold></th>
<th valign="top" align="center"><bold>Male</bold></th>
<th valign="top" align="center"><bold>Female</bold></th>
</tr>
</thead>
<tbody>
<tr>
<td valign="top" align="left">Unemployed</td>
<td valign="top" align="center"><bold>&#x02212;0.150</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.263</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.105</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td/>
<td/>
<td/>
</tr>
<tr>
<td/>
<td valign="top" align="center">(0.014)</td>
<td valign="top" align="center">(0.024)</td>
<td valign="top" align="center">(0.018)</td>
<td/>
<td/>
<td/>
</tr>
<tr>
<td valign="top" align="left" colspan="2">Unemployed for 0&#x02013;2 years</td>
<td/>
<td/>
<td valign="top" align="center"><bold>&#x02212;0.191</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.269</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.150</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
</tr>
<tr>
<td/>
<td/>
<td/>
<td/>
<td valign="top" align="center">(0.021)</td>
<td valign="top" align="center">(0.035)</td>
<td valign="top" align="center">(0.028)</td>
</tr>
<tr>
<td valign="top" align="left" colspan="2">Unemployed for 3&#x02013;5 years</td>
<td/>
<td/>
<td valign="top" align="center"><bold>&#x02212;0.235</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.301</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.190</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
</tr>
<tr>
<td/>
<td/>
<td/>
<td/>
<td valign="top" align="center">(0.040)</td>
<td valign="top" align="center">(0.064)</td>
<td valign="top" align="center">(0.052)</td>
</tr>
<tr>
<td valign="top" align="left" colspan="2">Unemployed for 6&#x02013;8 years</td>
<td/>
<td/>
<td valign="top" align="center"><bold>&#x02212;0.258</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>&#x02212;0.549</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">&#x02212;0.117</td>
</tr>
<tr>
<td/>
<td/>
<td/>
<td/>
<td valign="top" align="center">(0.068)</td>
<td valign="top" align="center">(0.117)</td>
<td valign="top" align="center">(0.087)</td>
</tr>
<tr>
<td valign="top" align="left">Unemployed<sup>&#x0002A;</sup>informal</td>
<td valign="top" align="center"><bold>0.076</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>0.161</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>0.048</bold><sup><bold>&#x0002A;&#x0002A;</bold></sup></td>
<td/>
<td/>
<td/>
</tr>
<tr>
<td/>
<td valign="top" align="center">(0.018)</td>
<td valign="top" align="center">(0.031)</td>
<td valign="top" align="center">(0.023)</td>
<td/>
<td/>
<td/>
</tr>
<tr>
<td valign="top" align="left">Unemployed<sup>&#x0002A;</sup>formal</td>
<td valign="top" align="center">&#x02212;0.041</td>
<td valign="top" align="center">&#x02212;0.053</td>
<td valign="top" align="center">&#x02212;0.009</td>
<td/>
<td/>
<td/>
</tr>
<tr>
<td/>
<td valign="top" align="center">(0.047)</td>
<td valign="top" align="center">(0.070)</td>
<td valign="top" align="center">(0.065)</td>
<td/>
<td/>
<td/>
</tr>
<tr>
<td valign="top" align="left" colspan="3">Unemployed for 0&#x02013;2 years<sup>&#x0002A;</sup>informal</td>
<td/>
<td valign="top" align="center"><bold>0.115</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>0.161</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>0.096</bold><sup><bold>&#x0002A;&#x0002A;</bold></sup></td>
</tr>
<tr>
<td/>
<td/>
<td/>
<td/>
<td valign="top" align="center">(0.030)</td>
<td valign="top" align="center">(0.048)</td>
<td valign="top" align="center">(0.039)</td>
</tr>
<tr>
<td valign="top" align="left" colspan="3">Unemployed for 3&#x02013;5 years<sup>&#x0002A;</sup>informal</td>
<td/>
<td valign="top" align="center"><bold>0.110</bold><sup><bold>&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>0.211</bold><sup><bold>&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">0.088</td>
</tr>
<tr>
<td/>
<td/>
<td/>
<td/>
<td valign="top" align="center">(0.053)</td>
<td valign="top" align="center">(0.102)</td>
<td valign="top" align="center">(0.066)</td>
</tr>
<tr>
<td valign="top" align="left" colspan="3">Unemployed for 6&#x02013;8 years<sup>&#x0002A;</sup>informal</td>
<td/>
<td valign="top" align="center"><bold>0.193</bold><sup><bold>&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>0.463</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">0.093</td>
</tr>
<tr>
<td/>
<td/>
<td/>
<td/>
<td valign="top" align="center">(0.094)</td>
<td valign="top" align="center">(0.159)</td>
<td valign="top" align="center">(0.121)</td>
</tr>
<tr>
<td valign="top" align="left" colspan="3">Unemployed for 0&#x02013;2 years<sup>&#x0002A;</sup>formal</td>
<td/>
<td valign="top" align="center">&#x02212;0.156<sup>&#x0002A;</sup></td>
<td valign="top" align="center">0.014</td>
<td valign="top" align="center"><bold>&#x02212;0.361</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
</tr>
<tr>
<td/>
<td/>
<td/>
<td/>
<td valign="top" align="center">(0.083)</td>
<td valign="top" align="center">(0.104)</td>
<td valign="top" align="center">(0.134)</td>
</tr>
<tr>
<td valign="top" align="left" colspan="3">Unemployed for 3&#x02013;5 years<sup>&#x0002A;</sup>formal</td>
<td/>
<td valign="top" align="center">0.219</td>
<td valign="top" align="center">0.001</td>
<td valign="top" align="center"><bold>0.326</bold><sup><bold>&#x0002A;&#x0002A;</bold></sup></td>
</tr>
<tr>
<td/>
<td/>
<td/>
<td/>
<td valign="top" align="center">(0.136)</td>
<td valign="top" align="center">(0.272)</td>
<td valign="top" align="center">(0.166)</td>
</tr>
<tr>
<td valign="top" align="left">Informal</td>
<td valign="top" align="center"><bold>0.018</bold><sup><bold>&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>0.022</bold><sup><bold>&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">0.017</td>
<td valign="top" align="center">0.008</td>
<td valign="top" align="center">0.006</td>
<td valign="top" align="center">0.013</td>
</tr>
<tr>
<td/>
<td valign="top" align="center">(0.008)</td>
<td valign="top" align="center">(0.011)</td>
<td valign="top" align="center">(0.012)</td>
<td valign="top" align="center">(0.010)</td>
<td valign="top" align="center">(0.013)</td>
<td valign="top" align="center">(0.016)</td>
</tr>
<tr>
<td valign="top" align="left">Formal</td>
<td valign="top" align="center">0.006</td>
<td valign="top" align="center">0.009</td>
<td valign="top" align="center">&#x02212;0.004</td>
<td valign="top" align="center">&#x02212;0.008</td>
<td valign="top" align="center">0.022</td>
<td valign="top" align="center">&#x02212;0.060<sup>&#x0002A;</sup></td>
</tr>
<tr>
<td/>
<td valign="top" align="center">(0.017)</td>
<td valign="top" align="center">(0.020)</td>
<td valign="top" align="center">(0.029)</td>
<td valign="top" align="center">(0.020)</td>
<td valign="top" align="center">(0.023)</td>
<td valign="top" align="center">(0.035)</td>
</tr>
<tr>
<td valign="top" align="left">Observations</td>
<td valign="top" align="center">18,716</td>
<td valign="top" align="center">8,588</td>
<td valign="top" align="center">10,128</td>
<td valign="top" align="center">11,739</td>
<td valign="top" align="center">5,675</td>
<td valign="top" align="center">6,064</td>
</tr>
<tr>
<td valign="top" align="left">R-squared</td>
<td valign="top" align="center">0.047</td>
<td valign="top" align="center">0.052</td>
<td valign="top" align="center">0.052</td>
<td valign="top" align="center">0.081</td>
<td valign="top" align="center">0.070</td>
<td valign="top" align="center">0.100</td>
</tr>
<tr>
<td valign="top" align="left">Respondents</td>
<td valign="top" align="center">6,264</td>
<td valign="top" align="center">2,840</td>
<td valign="top" align="center">3,424</td>
<td valign="top" align="center">5,181</td>
<td valign="top" align="center">2,429</td>
<td valign="top" align="center">2,752</td>
</tr></tbody>
</table>
<table-wrap-foot>
<p>The asterisk symbols following coefficients indicate different levels of statistical significance: <sup>&#x0002A;&#x0002A;&#x0002A;</sup><italic>p</italic> &#x0003C; 0.01, <sup>&#x0002A;&#x0002A;</sup><italic>p</italic> &#x0003C; 0.05, <sup>&#x0002A;</sup><italic>p</italic> &#x0003C; 0.1. Bold values in regression indicate statistically significant coefficients (<italic>P</italic> value &#x0003C; 0.05).</p>
</table-wrap-foot>
</table-wrap>
<table-wrap position="float" id="T14">
<label>Table 14</label>
<caption><p>Robust test- Gender comparison of moderating effect of social participation.</p></caption>
<table frame="box" rules="all">
<thead>
<tr style="background-color:#919498;color:#ffffff">
<th valign="top" align="left" rowspan="2"><bold>Moderating effect</bold></th>
<th valign="top" align="center"><bold>Total</bold></th>
<th valign="top" align="center"><bold>Male</bold></th>
<th valign="top" align="center"><bold>Female</bold></th>
<th valign="top" align="center" colspan="2"><bold>Comparison</bold></th>
</tr>
<tr style="background-color:#919498;color:#ffffff">
<th valign="top" align="center"><bold>Coefficients</bold></th>
<th valign="top" align="center"><bold>Coefficients</bold></th>
<th valign="top" align="center"><bold>Coefficients</bold></th>
<th valign="top" align="center"><bold>Test statistics (</bold>&#x003C7;<sup><bold>2</bold></sup><bold>)</bold></th>
<th valign="top" align="center"><italic><bold>p</bold></italic><bold>-Value</bold></th>
</tr>
</thead>
<tbody>
<tr>
<td valign="top" align="left">Unemployed<sup>&#x0002A;</sup>informal</td>
<td valign="top" align="center"><bold>0.076</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>0.161</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>0.048</bold><sup><bold>&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>4.08</bold><sup><bold>&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">0.043</td>
</tr>
<tr>
<td valign="top" align="left">Unemployed<sup>&#x0002A;</sup>formal</td>
<td valign="top" align="center">&#x02212;0.041</td>
<td valign="top" align="center">&#x02212;0.053</td>
<td valign="top" align="center">&#x02212;0.009</td>
<td valign="top" align="center">0.16</td>
<td valign="top" align="center">0.692</td>
</tr>
<tr>
<td valign="top" align="left">Unemployed for 0&#x02013;2 years<sup>&#x0002A;</sup>informal</td>
<td valign="top" align="center"><bold>0.115</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>0.161</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>0.096</bold><sup><bold>&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">0.53</td>
<td valign="top" align="center">0.466</td>
</tr>
<tr>
<td valign="top" align="left">Unemployed for 3&#x02013;5 years<sup>&#x0002A;</sup>informal</td>
<td valign="top" align="center"><bold>0.110</bold><sup><bold>&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>0.211</bold><sup><bold>&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">0.088</td>
<td valign="top" align="center">0.62</td>
<td valign="top" align="center">0.432</td>
</tr>
<tr>
<td valign="top" align="left">Unemployed for 6&#x02013;8 years<sup>&#x0002A;</sup>informal</td>
<td valign="top" align="center"><bold>0.193</bold><sup><bold>&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center"><bold>0.463</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">0.093</td>
<td valign="top" align="center">0.93</td>
<td valign="top" align="center">0.335</td>
</tr>
<tr>
<td valign="top" align="left">Unemployed for 0&#x02013;2 years<sup>&#x0002A;</sup>formal</td>
<td valign="top" align="center">&#x02212;0.156<sup>&#x0002A;</sup></td>
<td valign="top" align="center">0.014</td>
<td valign="top" align="center">&#x02013;<bold>0.361</bold><sup><bold>&#x0002A;&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">3.17<sup>&#x0002A;</sup></td>
<td valign="top" align="center">0.075</td>
</tr>
<tr>
<td valign="top" align="left">Unemployed for 3&#x02013;5 years<sup>&#x0002A;</sup>formal</td>
<td valign="top" align="center">0.219</td>
<td valign="top" align="center">0.001</td>
<td valign="top" align="center"><bold>0.326</bold><sup><bold>&#x0002A;&#x0002A;</bold></sup></td>
<td valign="top" align="center">1.74</td>
<td valign="top" align="center">0.187</td>
</tr>
<tr>
<td valign="top" align="left">Unemployed for 6&#x02013;8 years<sup>&#x0002A;</sup>formal</td>
<td valign="top" align="center">/</td>
<td valign="top" align="center">/</td>
<td valign="top" align="center">/</td>
<td valign="top" align="center">/</td>
<td valign="top" align="center">/</td>
</tr></tbody>
</table>
<table-wrap-foot>
<p>The asterisk symbols following coefficients indicate different levels of statistical significance: <sup>&#x0002A;&#x0002A;&#x0002A;</sup><italic>p</italic> &#x0003C; 0.01, <sup>&#x0002A;&#x0002A;</sup><italic>p</italic> &#x0003C; 0.05, <sup>&#x0002A;</sup><italic>p</italic> &#x0003C; 0.1. Bold values in regression indicate statistically significant coefficients (<italic>P</italic> value &#x0003C; 0.05).</p>
</table-wrap-foot>
</table-wrap>
</sec>
</sec>
</sec>
<sec id="s4">
<title>4 Discussion and limitations</title>
<sec>
<title>4.1 Discussion</title>
<p>This study demonstrates that unemployment adversely affects the health of middle-aged and older adults, with the average decline in health being more pronounced among men than women. For middle-aged and older men, the longer the duration of unemployment, the greater the detrimental impact on health. This finding is consistent with (<xref ref-type="bibr" rid="B30">30</xref>), who used mortality risk as an indicator of health who used mortality risk as an indicator of health. Under traditional social role constraints, unemployed men are more likely to experience societal stigma in the short term (<xref ref-type="bibr" rid="B31">31</xref>). Furthermore, unemployment imposes greater financial pressure on men (<xref ref-type="bibr" rid="B26">26</xref>), as unemployment persists, depleting savings and accumulating stress exacerbate health deterioration (<xref ref-type="bibr" rid="B32">32</xref>). Thus, with the increase of unemployment duration, men will suffer more and more damage to their health. For middle-aged and older women, unemployment for 0&#x02013;2 years and 3&#x02013;5 years will bring health damage, while unemployment for 6&#x02013;8 years will not cause significant health damage, which is not consistent to previous studies (<xref ref-type="bibr" rid="B33">33</xref>). This unexpected pattern may reflect gender differences in coping strategies: long-term unemployed men tend to adopt riskier lifestyles (<xref ref-type="bibr" rid="B18">18</xref>), whereas women demonstrate more adaptive coping behaviors (<xref ref-type="bibr" rid="B36">36</xref>). Therefore, women&#x00027;s health tends to flatten out when they are unemployed for 6&#x02013;8 years.</p>
<p>Moreover, the study finds that informal social participation buffers the negative health impacts of unemployment for both genders, with a notably stronger moderating effect among men. In contrast, formal social participation not only fails to mitigate these negative health effects but, under certain conditions, may even exacerbate them. In particular, informal social participation reduces the health costs associated with unemployment across short-, medium-, and long-term periods for men, whereas for women, only short-term unemployment benefits significantly from such buffering. Formal social participation appears to amplify health risks among unemployed middle-aged and older adults&#x02014;intensifying the negative effects of short-term unemployment among women and long-term unemployment among men.</p>
<p>Regarding the role of formal social participation in the relationship between unemployment and health, this study gives the following explanation: First, formal social activities generally involve lower frequency of participation and smaller groups. According to activity theory, such activities fail to provide continuous, stable role support for individuals coping with the loss of their work role (<xref ref-type="bibr" rid="B24">24</xref>). Without a reliable alternative role, formal social participation offers little protection against the health risks triggered by job loss. Second, participation in formal activities can lead to a stratified social comparison process (<xref ref-type="bibr" rid="B34">34</xref>), whereby older adults are ranked according to various dimensions. Individuals who suffer significant role losses may perceive themselves as being at the lower end of the hierarchy, thereby intensifying the negative impact of unemployment on health. This hierarchical comparison is primarily evident in secondary relationships&#x02014;such as those established through formal social participation (<xref ref-type="bibr" rid="B35">35</xref>). In addition, the number of people participating in formal social activities is small, so when testing the moderating effect of formal social participation, the coefficient may not be reliable, and the estimate of this coefficient should be treated with caution.</p>
</sec>
<sec>
<title>4.2 Limitations</title>
<p>Firstly, upon screening the CHARLS questionnaire, only seven types of social participation were identified. Although these seven types encompass the majority of participation behaviors exhibited by middle-aged and older adults, there are still notable omissions. For example, participation in religious activities is an important form of social participation globally. While scholars in Western countries have extensively examined the health impacts of religious participation, similar research in China is sparse. In addition, CHARLS has also ignored online social participation, which is increasingly popular among middle-aged and older adults in the new media era. Future studies should delve deeper into the diversity of social participation in greater depth and further investigate its effects on health.</p>
<p>Secondly, CHARLS inquired about respondents&#x00027; participation in specific social activities over the past month. However, this approach fails to capture individuals who have regularly engaged in social activities for an extended period but have recently been unable to participate due to illness. To address this limitation, future research should adopt a more comprehensive approach to capture long-term patterns of social activity participation, thereby providing a more accurate representation of individuals&#x00027; social participation behaviors. Furthermore, although social participation in this study refers to activities in the past month and health is measured as the current status, which helps establish some degree of temporal ordering, we acknowledge that the possibility of reverse causation cannot be entirely ruled out. In future research, we plan to explore suitable instrumental variables to better address this issue.</p>
<p>Thirdly, only respondents&#x00027; employment status and retirement status are observable in CHARLS, the exact length of unemployment cannot be directly measured. This study defines unemployment duration as a four-category variable based on respondents&#x00027; employment status across four survey waves. To avoid interference from individuals who have never worked due to various factors, only those who were employed in the first wave are retained. This approach helps ensure that the sample includes individuals who have recently or in the past few years lost their jobs. However, recording job loss by year may overlook respondents who experienced brief reemployment between survey waves. Therefore, future research should employ more specialized survey instruments that capture the continuous duration of unemployment, allowing for a more detailed examination of the relationship between job loss and health.</p>
<p>Fourthly, our final analytic sample accounts for only about 35% of the total initial CHARLS sample, as most attrition was due to partial missing data or participants&#x00027; unwillingness to complete the lengthy questionnaire, rather than complete dropout caused by health deterioration. Therefore, we believe that the impact of sample attrition on our main results is likely limited. However, we acknowledge that some bias may still exist. Such bias could lead to an underestimation of the true health impact of long-term unemployment, as the least healthy individuals are less likely to be retained in the sample. To address this issue more rigorously in future research, our team plans to design and implement our own survey with tighter control over sample retention and attrition-related biases.</p>
</sec></sec>
<sec id="s5">
<title>5 Conclusion</title>
<p>This study investigates the adverse effects of unemployment on the health of middle-aged and older adults, examines how the duration of unemployment influences these effects, and assesses the moderating role of social participation-particularly informal social activities&#x02014;with an emphasis on gender differences. The findings indicate that unemployment is detrimental to the health of both middle-aged and older men and women. However, the average health impact is greater for men. For men, the longer the unemployment period, the more severe the health consequences.</p>
<p>In terms of moderating effects, informal social participation plays a protective role against the health costs of unemployment for both genders, while formal social participation does not. In fact, formal participation may even aggravate health outcomes for unemployed individuals. When unemployment duration is considered, informal participation helps mitigate the health impact of short-, medium-, and long-term unemployment among men, but only benefits women during short-term unemployment.</p>
<p>These findings highlight the importance of fostering informal social support networks to alleviate the health consequences of unemployment among older populations, and call into question the assumption that all forms of social participation are inherently beneficial.</p>
</sec>
</body>
<back>
<sec sec-type="data-availability" id="s6">
<title>Data availability statement</title>
<p>Publicly available datasets were analyzed in this study. This data can be found here: <ext-link ext-link-type="uri" xlink:href="https://charls.charlsdata.com/pages/data/111/zh-cn.html">https://charls.charlsdata.com/pages/data/111/zh-cn.html</ext-link>.</p>
</sec>
<sec sec-type="author-contributions" id="s7">
<title>Author contributions</title>
<p>XC: Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Software, Writing &#x02013; original draft, Writing &#x02013; review &#x00026; editing. TL: Methodology, Writing &#x02013; original draft, Writing &#x02013; review &#x00026; editing. KH: Methodology, Writing &#x02013; original draft, Writing &#x02013; review &#x00026; editing. JY: Supervision, Writing &#x02013; original draft, Writing &#x02013; review &#x00026; editing.</p>
</sec>
<sec sec-type="funding-information" id="s8">
<title>Funding</title>
<p>The author(s) declare that financial support was received for the research and/or publication of this article. 1. Zhejiang Federation of Humanities and Social Sciences Research Project: &#x0201C;Impact Mechanism of Short Video Platform Usage Patterns on Mental Health of Chinese Elderly&#x0201D; (Grant No. 2025N165) 2. Hangzhou Philosophy and Social Sciences Planning Project: &#x0201C;Supply-Demand Matching of Community-Embedded Elderly Care Institutions in Hangzhou Under Demand-Driven Context&#x0201D; (Grant No. Z24YD059).</p>
</sec>
<sec sec-type="COI-statement" id="conf1">
<title>Conflict of interest</title>
<p>The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.</p>
</sec>
<sec sec-type="ai-statement" id="s9">
<title>Generative AI statement</title>
<p>The author(s) declare that no Gen AI was used in the creation of this manuscript.</p>
</sec>
<sec sec-type="disclaimer" id="s10">
<title>Publisher&#x00027;s note</title>
<p>All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article, or claim that may be made by its manufacturer, is not guaranteed or endorsed by the publisher.</p>
</sec><sec sec-type="supplementary-material" id="s11">
<title>Supplementary material</title>
<p>The Supplementary Material for this article can be found online at: <ext-link ext-link-type="uri" xlink:href="https://www.frontiersin.org/articles/10.3389/fpubh.2025.1611358/full#supplementary-material">https://www.frontiersin.org/articles/10.3389/fpubh.2025.1611358/full#supplementary-material</ext-link></p>
<supplementary-material xlink:href="Table_1.docx" id="SM1" mimetype="application/vnd.openxmlformats-officedocument.wordprocessingml.document" xmlns:xlink="http://www.w3.org/1999/xlink"/></sec>
<ref-list>
<title>References</title>
<ref id="B1">
<label>1.</label>
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Yen</surname> <given-names>H</given-names></name> <name><surname>Lin</surname> <given-names>L</given-names></name></person-group>. <article-title>Quality of life in older adults: benefits from the productive engagement in physical activity</article-title>. <source>J Exerc Sci Fit.</source> (<year>2018</year>) <volume>16</volume>:<fpage>49</fpage>&#x02013;<lpage>54</lpage>. <pub-id pub-id-type="doi">10.1016/j.jesf.2018.06.001</pub-id><pub-id pub-id-type="pmid">30662493</pub-id></citation></ref>
<ref id="B2">
<label>2.</label>
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Mckee-Ryan</surname> <given-names>F</given-names></name> <name><surname>Song</surname> <given-names>Z</given-names></name> <name><surname>Wanberg</surname> <given-names>CR</given-names></name> <name><surname>Kinicki</surname> <given-names>AJ</given-names></name></person-group>. <article-title>Psychological and physical well-being during unemployment: a meta-analytic study</article-title>. <source>J Appl Psychol.</source> (<year>2005</year>) <volume>90</volume>:<fpage>53</fpage>&#x02013;<lpage>76</lpage>. <pub-id pub-id-type="doi">10.1037/0021-9010.90.1.53</pub-id><pub-id pub-id-type="pmid">15641890</pub-id></citation></ref>
<ref id="B3">
<label>3.</label>
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Rubio</surname> <given-names>L</given-names></name> <name><surname>Dumitrache</surname> <given-names>C</given-names></name> <name><surname>Cordon-Pozo</surname> <given-names>E</given-names></name> <name><surname>Rubio-Herrera</surname> <given-names>R</given-names></name></person-group>. <article-title>Coping: impact of gender and stressful life events in middle and in old age</article-title>. <source>Clin Gerontol.</source> (<year>2016</year>) <volume>39</volume>:<fpage>468</fpage>&#x02013;<lpage>88</lpage>. <pub-id pub-id-type="doi">10.1080/07317115.2015.1132290</pub-id><pub-id pub-id-type="pmid">29471775</pub-id></citation></ref>
<ref id="B4">
<label>4.</label>
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Minkler</surname> <given-names>M</given-names></name></person-group>. <article-title>Social support and health of the elderly</article-title>. In:<person-group person-group-type="editor"><name><surname>Cohen</surname> <given-names>S</given-names></name> <name><surname>Syme</surname> <given-names>SL</given-names></name></person-group>, editors. <source>Social Support and Health</source>. <publisher-loc>San Diego, CA</publisher-loc>: <publisher-name>Academic Press</publisher-name> (<year>1985</year>). p. <fpage>199</fpage>&#x02013;<lpage>216</lpage>.</citation>
</ref>
<ref id="B5">
<label>5.</label>
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Wang</surname> <given-names>Q</given-names></name></person-group>. <article-title>The effects of unemployment rate on health status of Chinese people</article-title>. <source>Iran J Public Health.</source> (<year>2015</year>) <volume>44</volume>:<fpage>28</fpage>&#x02013;<lpage>35</lpage>.<pub-id pub-id-type="pmid">26060773</pub-id></citation></ref>
<ref id="B6">
<label>6.</label>
<citation citation-type="web"><person-group person-group-type="author"><collab>National Development and Reform Commission (2023)</collab></person-group>. Available online at: <ext-link ext-link-type="uri" xlink:href="https://www.ndrc.gov.cn/fggz/jyysr/jysrsbxf/202305/t20230530_1356850.html">https://www.ndrc.gov.cn/fggz/jyysr/jysrsbxf/202305/t20230530_1356850.html</ext-link> (Accessed July 30, 2023).</citation>
</ref>
<ref id="B7">
<label>7.</label>
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Chambre</surname> <given-names>SM</given-names></name></person-group>. <article-title>Is volunteering a substitute for role loss in old age? An empirical test of activity theory</article-title>. <source>Gerontologist.</source> (<year>1984</year>) <volume>24</volume>:<fpage>292</fpage>&#x02013;<lpage>8</lpage>. <pub-id pub-id-type="doi">10.1093/geront/24.3.292</pub-id><pub-id pub-id-type="pmid">6745666</pub-id></citation></ref>
<ref id="B8">
<label>8.</label>
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Najjumba-Mulindwa</surname> <given-names>I</given-names></name> <name><surname>editor</surname></name></person-group>. <source>Chronic Poverty among the Elderly in Uganda: Perceptions, Experiences and Policy Issues. CPRC conference</source> (<year>2003</year>).</citation>
</ref>
<ref id="B9">
<label>9.</label>
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Janlert</surname> <given-names>U</given-names></name></person-group>. <article-title>Economic crisis, unemployment and public health</article-title>. <source>Scand J Public Health.</source> (<year>2009</year>) <volume>37</volume>:<fpage>783</fpage>&#x02013;<lpage>4</lpage>. <pub-id pub-id-type="doi">10.1177/1403494809351070</pub-id><pub-id pub-id-type="pmid">19864351</pub-id></citation></ref>
<ref id="B10">
<label>10.</label>
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>M&#x000FC;ller</surname> <given-names>G</given-names></name> <name><surname>Wellmann</surname> <given-names>J</given-names></name> <name><surname>Hartwig</surname> <given-names>S</given-names></name> <name><surname>Greiser</surname> <given-names>KH</given-names></name> <name><surname>Moebus</surname> <given-names>S</given-names></name> <name><surname>J&#x000F6;ckel</surname> <given-names>KH</given-names></name> <etal/></person-group>. <article-title>Association of neighbourhood unemployment rate with incident type 2 diabetes mellitus in five German regions</article-title>. <source>Diabet Med.</source> (<year>2015</year>) <volume>32</volume>:<fpage>1017</fpage>&#x02013;<lpage>22</lpage>. <pub-id pub-id-type="doi">10.1111/dme.12652</pub-id><pub-id pub-id-type="pmid">25440771</pub-id></citation></ref>
<ref id="B11">
<label>11.</label>
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Gallo</surname> <given-names>WT</given-names></name> <name><surname>Bradley</surname> <given-names>EH</given-names></name> <name><surname>Siegel</surname> <given-names>M</given-names></name> <name><surname>Kasl</surname> <given-names>SV</given-names></name></person-group>. <article-title>Health effects of involuntary job loss among older workers: findings from the health and retirement survey</article-title>. <source>J Gerontol B Psychol Sci Soc Sci.</source> (<year>2000</year>) <volume>55</volume>:<fpage>S131</fpage>&#x02013;<lpage>40</lpage>. <pub-id pub-id-type="doi">10.1093/geronb/55.3.S131</pub-id><pub-id pub-id-type="pmid">11833981</pub-id></citation></ref>
<ref id="B12">
<label>12.</label>
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Liwowsky</surname> <given-names>I</given-names></name> <name><surname>Kramer</surname> <given-names>D</given-names></name> <name><surname>Mergl</surname> <given-names>R</given-names></name> <name><surname>Bramesfeld</surname> <given-names>A</given-names></name> <name><surname>Allgaier</surname> <given-names>AK</given-names></name> <name><surname>P&#x000F6;ppel</surname> <given-names>E</given-names></name> <etal/></person-group>. <article-title>Screening for depression in the older long-term unemployed</article-title>. <source>Soc Psychiatry Psychiatr Epidemiol.</source> (<year>2009</year>) <volume>44</volume>:<fpage>622</fpage>&#x02013;<lpage>7</lpage>. <pub-id pub-id-type="doi">10.1007/s00127-008-0478-y</pub-id><pub-id pub-id-type="pmid">19048174</pub-id></citation></ref>
<ref id="B13">
<label>13.</label>
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Madianos</surname> <given-names>M</given-names></name> <name><surname>Economou</surname> <given-names>M</given-names></name> <name><surname>Alexiou</surname> <given-names>T</given-names></name> <name><surname>Stefanis</surname> <given-names>C</given-names></name></person-group>. <article-title>Depression and economic hardship across Greece in 2008 and 2009: two cross-sectional surveys nationwide</article-title>. <source>Soc Psychiatry Psychiatr Epidemiol.</source> (<year>2011</year>) <volume>46</volume>:<fpage>943</fpage>&#x02013;<lpage>52</lpage>. <pub-id pub-id-type="doi">10.1007/s00127-010-0265-4</pub-id><pub-id pub-id-type="pmid">20614103</pub-id></citation></ref>
<ref id="B14">
<label>14.</label>
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Classen</surname> <given-names>TJ</given-names></name> <name><surname>Dunn</surname> <given-names>RA</given-names></name></person-group>. <article-title>The effect of job loss and unemployment duration on suicide risk in the United States: a new look using mass-layoffs and unemployment duration</article-title>. <source>Health Econ.</source> (<year>2012</year>) <volume>21</volume>:<fpage>338</fpage>&#x02013;<lpage>50</lpage>. <pub-id pub-id-type="doi">10.1002/hec.1719</pub-id><pub-id pub-id-type="pmid">21322087</pub-id></citation></ref>
<ref id="B15">
<label>15.</label>
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Comino</surname> <given-names>EJ</given-names></name> <name><surname>Harris</surname> <given-names>E</given-names></name> <name><surname>Silove</surname> <given-names>D</given-names></name> <name><surname>Manicavasagar</surname> <given-names>V</given-names></name> <name><surname>Harris</surname> <given-names>MF</given-names></name></person-group>. <article-title>Prevalence, detection and management of anxiety and depressive symptoms in unemployed patients attending general practitioners</article-title>. <source>Aust N Z J Psychiatry.</source> (<year>2000</year>) <volume>34</volume>:<fpage>107</fpage>&#x02013;<lpage>13</lpage>. <pub-id pub-id-type="doi">10.1046/j.1440-1614.2000.00645.x</pub-id><pub-id pub-id-type="pmid">11185922</pub-id></citation></ref>
<ref id="B16">
<label>16.</label>
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Schaller</surname> <given-names>J</given-names></name> <name><surname>Stevens</surname> <given-names>AH</given-names></name></person-group>. <article-title>Short-run effects of job loss on health conditions, health insurance, and health care utilization</article-title>. <source>J Health Econ.</source> (<year>2015</year>) <volume>43</volume>:<fpage>190</fpage>&#x02013;<lpage>203</lpage>. <pub-id pub-id-type="doi">10.1016/j.jhealeco.2015.07.003</pub-id><pub-id pub-id-type="pmid">26250651</pub-id></citation></ref>
<ref id="B17">
<label>17.</label>
<citation citation-type="journal"><person-group person-group-type="author"><collab>Zago&#x0017C;d&#x0017C;on Zago&#x0017C;d&#x0017C;on P</collab> <name><surname>Parszuto</surname> <given-names>J</given-names></name> <name><surname>Wrotkowska</surname> <given-names>M</given-names></name> <name><surname>Dydjow-Bendek</surname> <given-names>D</given-names></name></person-group>. <article-title>Effect of unemployment on cardiovascular risk factors and mental health</article-title>. <source>Occup Med.</source> (<year>2014</year>) <volume>64</volume>:<fpage>436</fpage>&#x02013;<lpage>41</lpage>. <pub-id pub-id-type="doi">10.1093/occmed/kqu044</pub-id><pub-id pub-id-type="pmid">24727560</pub-id></citation></ref>
<ref id="B18">
<label>18.</label>
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Acevedo</surname> <given-names>P</given-names></name> <name><surname>Mora-Urda</surname> <given-names>AI</given-names></name> <name><surname>Montero</surname> <given-names>P</given-names></name></person-group>. <article-title>Social inequalities in health: duration of unemployment unevenly effects on the health of men and women</article-title>. <source>Eur J Public Health.</source> (<year>2020</year>) <volume>30</volume>:<fpage>305</fpage>&#x02013;<lpage>10</lpage>. <pub-id pub-id-type="doi">10.1093/eurpub/ckz180</pub-id><pub-id pub-id-type="pmid">31625557</pub-id></citation></ref>
<ref id="B19">
<label>19.</label>
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Strandh</surname> <given-names>M</given-names></name> <name><surname>Hammarstr&#x000F6;m</surname> <given-names>A</given-names></name> <name><surname>Nilsson</surname> <given-names>K</given-names></name> <name><surname>Nordenmark</surname> <given-names>M</given-names></name> <name><surname>Russel</surname> <given-names>H</given-names></name></person-group>. <article-title>Unemployment, gender and mental health: the role of the gender regime</article-title>. <source>Sociol Health Illn.</source> (<year>2013</year>) <volume>35</volume>:<fpage>649</fpage>&#x02013;<lpage>65</lpage>. <pub-id pub-id-type="doi">10.1111/j.1467-9566.2012.01517.x</pub-id><pub-id pub-id-type="pmid">23009677</pub-id></citation></ref>
<ref id="B20">
<label>20.</label>
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Chen</surname> <given-names>X</given-names></name> <name><surname>Zhu</surname> <given-names>X</given-names></name></person-group>. <article-title>Social participation and depression in middle-aged and senior citizens in China</article-title>. <source>Soc Behav Pers</source>. (<year>2022</year>) <volume>50</volume>:<fpage>1</fpage>&#x02013;<lpage>14</lpage>. <pub-id pub-id-type="doi">10.2224/sbp.10853</pub-id><pub-id pub-id-type="pmid">39381768</pub-id></citation></ref>
<ref id="B21">
<label>21.</label>
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Gottlieb</surname> <given-names>BH</given-names></name> <name><surname>Bergen</surname> <given-names>AE</given-names></name></person-group>. <article-title>Social support concepts and measures</article-title>. <source>J Psychosom Res.</source> (<year>2010</year>) <volume>69</volume>:<fpage>511</fpage>&#x02013;<lpage>20</lpage>. <pub-id pub-id-type="doi">10.1016/j.jpsychores.2009.10.001</pub-id><pub-id pub-id-type="pmid">20955871</pub-id></citation></ref>
<ref id="B22">
<label>22.</label>
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Cohen</surname> <given-names>S</given-names></name> <name><surname>Wills</surname> <given-names>TA</given-names></name></person-group>. <article-title>Stress, social support, and the buffering hypothesis</article-title>. <source>Psychol Bull.</source> (<year>1985</year>) <volume>98</volume>:<fpage>310</fpage>&#x02013;<lpage>57</lpage>. <pub-id pub-id-type="doi">10.1037//0033-2909.98.2.310</pub-id></citation>
</ref>
<ref id="B23">
<label>23.</label>
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Milner</surname> <given-names>A</given-names></name> <name><surname>Krnjacki</surname> <given-names>L</given-names></name> <name><surname>Butterworth</surname> <given-names>P</given-names></name> <name><surname>Lamontagne</surname> <given-names>AD</given-names></name></person-group>. <article-title>The role of social support in protecting mental health when employed and unemployed: a longitudinal fixed-effects analysis using 12 annual waves of the HILDA cohort</article-title>. <source>Soc Sci Med.</source> (<year>2016</year>) <volume>153</volume>:<fpage>20</fpage>&#x02013;<lpage>6</lpage>. <pub-id pub-id-type="doi">10.1016/j.socscimed.2016.01.050</pub-id><pub-id pub-id-type="pmid">26867208</pub-id></citation></ref>
<ref id="B24">
<label>24.</label>
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Lemon</surname> <given-names>BW</given-names></name> <name><surname>Bengtson</surname> <given-names>VL</given-names></name> <name><surname>Peterson</surname> <given-names>JA</given-names></name></person-group>. <article-title>An exploration of the activity theory of aging: activity types and life satisfaction among in-movers to a retirement community1</article-title>. <source>J Gerontol.</source> (<year>1972</year>) <volume>27</volume>:<fpage>511</fpage>&#x02013;<lpage>23</lpage>. <pub-id pub-id-type="doi">10.1093/geronj/27.4.511</pub-id><pub-id pub-id-type="pmid">5075497</pub-id></citation></ref>
<ref id="B25">
<label>25.</label>
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Vo&#x000DF;emer</surname> <given-names>J</given-names></name> <name><surname>Gebel</surname> <given-names>M</given-names></name> <name><surname>Nizalova</surname> <given-names>O</given-names></name> <name><surname>Nikolaieva</surname> <given-names>O</given-names></name></person-group>. <article-title>The effect of an early-career involuntary job loss on later life health in Europe</article-title>. <source>Adv Life Course Res.</source> (<year>2018</year>) <volume>35</volume>:<fpage>69</fpage>&#x02013;<lpage>76</lpage>. <pub-id pub-id-type="doi">10.1016/j.alcr.2018.01.001</pub-id></citation>
</ref>
<ref id="B26">
<label>26.</label>
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Artazcoz</surname> <given-names>L</given-names></name> <name><surname>Benach</surname> <given-names>J</given-names></name> <name><surname>Borrell</surname> <given-names>C</given-names></name> <name><surname>Cort&#x000E8;s</surname> <given-names>I</given-names></name></person-group>. <article-title>Unemployment and mental health: understanding the interactions among gender, family roles, and social class</article-title>. <source>Am J Public Health.</source> (<year>2004</year>) <volume>94</volume>:<fpage>82</fpage>&#x02013;<lpage>8</lpage>. <pub-id pub-id-type="doi">10.2105/AJPH.94.1.82</pub-id><pub-id pub-id-type="pmid">14713703</pub-id></citation></ref>
<ref id="B27">
<label>27.</label>
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Warr</surname> <given-names>P</given-names></name> <name><surname>Jackson</surname> <given-names>P</given-names></name></person-group>. <article-title>Men without jobs: some correlates of age and length of unemployment</article-title>. <source>J Occup Psychol.</source> (<year>1984</year>) <volume>57</volume>:<fpage>77</fpage>&#x02013;<lpage>85</lpage>. <pub-id pub-id-type="doi">10.1111/j.2044-8325.1984.tb00150.x</pub-id></citation>
</ref>
<ref id="B28">
<label>28.</label>
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Kawachi</surname> <given-names>I</given-names></name> <name><surname>Berkman</surname> <given-names>LF</given-names></name></person-group>. <article-title>Social ties and mental health</article-title>. <source>J Urban Health.</source> (<year>2001</year>) <volume>78</volume>:<fpage>458</fpage>&#x02013;<lpage>67</lpage>. <pub-id pub-id-type="doi">10.1093/jurban/78.3.458</pub-id><pub-id pub-id-type="pmid">11564849</pub-id></citation></ref>
<ref id="B29">
<label>29.</label>
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Clogg</surname> <given-names>CC</given-names></name> <name><surname>Petkova</surname> <given-names>E</given-names></name> <name><surname>Haritou</surname> <given-names>A</given-names></name></person-group>. <article-title>Statistical methods for comparing regression coefficients between models</article-title>. <source>AJS.</source> (<year>1995</year>) <volume>100</volume>:<fpage>1261</fpage>&#x02013;<lpage>93</lpage>. <pub-id pub-id-type="doi">10.1086/230638</pub-id></citation>
</ref>
<ref id="B30">
<label>30.</label>
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Osler</surname> <given-names>M</given-names></name> <name><surname>Christensen</surname> <given-names>U</given-names></name> <name><surname>Lund</surname> <given-names>R</given-names></name> <name><surname>Gamborg</surname> <given-names>M</given-names></name> <name><surname>Godtfredsen</surname> <given-names>NS</given-names></name> <name><surname>Prescott</surname> <given-names>EIB</given-names></name></person-group>. <article-title>High local unemployment and increased mortality in Danish adults; results from a prospective multilevel study</article-title>. <source>Occup Environ Med.</source> (<year>2003</year>) <volume>60</volume>:<fpage>e16</fpage>. <pub-id pub-id-type="doi">10.1136/oem.60.11.e16</pub-id><pub-id pub-id-type="pmid">14573727</pub-id></citation></ref>
<ref id="B31">
<label>31.</label>
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Martikainen</surname> <given-names>PT</given-names></name> <name><surname>Valkonen</surname> <given-names>T</given-names></name></person-group>. <article-title>Excess mortality of unemployed men and women during a period of rapidly increasing unemployment</article-title>. <source>Lancet.</source> (<year>1996</year>) <volume>348</volume>:<fpage>909</fpage>&#x02013;<lpage>12</lpage>. <pub-id pub-id-type="doi">10.1016/S0140-6736(96)03291-6</pub-id><pub-id pub-id-type="pmid">8843808</pub-id></citation></ref>
<ref id="B32">
<label>32.</label>
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Kinicki</surname> <given-names>AJ</given-names></name> <name><surname>Prussia</surname> <given-names>GE</given-names></name> <name><surname>Mckee-Ryan</surname> <given-names>FM</given-names></name></person-group>. <article-title>A panel study of coping with involuntary job loss</article-title>. <source>Acad Manage J.</source> (<year>2000</year>) <volume>43</volume>:<fpage>90</fpage>&#x02013;<lpage>100</lpage>. <pub-id pub-id-type="doi">10.2307/1556388</pub-id></citation>
</ref>
<ref id="B33">
<label>33.</label>
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Janlert</surname> <given-names>U</given-names></name> <name><surname>Winefield</surname> <given-names>AH</given-names></name> <name><surname>Hammarstr&#x000F6;m</surname> <given-names>A</given-names></name></person-group>. <article-title>Length of unemployment and health-related outcomes: a life-course analysis</article-title>. <source>Eur J Public Health.</source> (<year>2015</year>) <volume>25</volume>:<fpage>662</fpage>&#x02013;<lpage>7</lpage>. <pub-id pub-id-type="doi">10.1093/eurpub/cku186</pub-id><pub-id pub-id-type="pmid">25417939</pub-id></citation></ref>
<ref id="B34">
<label>34.</label>
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Zola</surname> <given-names>IK</given-names></name></person-group>. <article-title>The UNEXPECTED COMMUNITY. By arlie russell hochschild. Englewood cliffs: prentice-hall, 1973. 193 pp</article-title>. <source>Soc Forces</source>. (<year>1974</year>) <volume>53</volume>:<fpage>361</fpage>. <pub-id pub-id-type="doi">10.1093/sf/53.2.361</pub-id></citation>
</ref>
<ref id="B35">
<label>35.</label>
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Longino</surname> <given-names>CJ</given-names></name> <name><surname>Kart</surname> <given-names>CS</given-names></name></person-group>. <article-title>Explicating activity theory: a formal replication</article-title>. <source>J Gerontol.</source> (<year>1982</year>) <volume>37</volume>:<fpage>713</fpage>&#x02013;<lpage>22</lpage>. <pub-id pub-id-type="doi">10.1093/geronj/37.6.713</pub-id><pub-id pub-id-type="pmid">7130646</pub-id></citation></ref>
<ref id="B36">
<label>36.</label>
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Leana</surname> <given-names>CR</given-names></name> <name><surname>Feldman</surname> <given-names>DC</given-names></name></person-group>. <article-title>Gender differences in responses to unemployment</article-title>. <source>J. Vocat. Behav</source> (<year>1991</year>) <volume>38</volume>:<fpage>65</fpage>&#x02013;<lpage>77</lpage>. <pub-id pub-id-type="doi">10.1016/0001-8791(91)90018-H</pub-id></citation>
</ref>
</ref-list>
</back>
</article>