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南京医科大学学报(社会科学版)京医科大学学报(社会科学版)
               第2期 总第121期                           南
                 2024年4月                      Journal of Nanjing Medical University(Social Sciences)of Nanjing Medical University(Social Sciences)  · 129  ·
                                              Journal
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                 The influence of volunteer activity participation on life satisfaction of

               middle⁃aged and elderly people:the mediating effect of depression and
                                                 age group differences

                                             CHEN Gong,WANG Yingying,LIU Lan
                                   Institute of Population Research,Peking University,Beijing 100871,China
                   Abstract:Based on the data of 2018 China Health and Retirement Longitudinal Study(CHARLS),the
               study used linear regression model,stepwise regression and product of coefficients approach to analyze the
               influence of volunteer activity participation on life satisfaction and the mediating role of depression. Moreover,
               the age⁃group differences in the mechanism were further explored. The findings revealed that volunteer activity
               participation was both directly and indirectly associated with life satisfaction among middle⁃aged and elderly
               people(β=0.041,P<0.05). Depression was found to mediate the relationship of volunteer participation to life
               satisfaction,and the mediating effect accounted for 22.75% . Furthermore,the influence coefficient and
               mechanism of volunteer activity participation on different age groups were obviously different. The results had
               important values for preventing and intervening depression,improving the mental health and life satisfaction
               among middle⁃aged and elderly people,and promoting active aging.
                   Key words:volunteer activity participation;middle⁃aged and elderly people;life satisfaction;depression
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