Community Social Capital and All-cause Mortality in Japan: Findings From the Adachi Cohort Study
Background: Community social capital is associated with various health outcomes; however, its impact on mortality is not fully understood, particularly in non-Western settings. This study examined the association between community-level social capital and all-cause mortality among community-dwelling...
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| Language: | English |
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Japan Epidemiological Association
2025-06-01
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| Series: | Journal of Epidemiology |
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| Online Access: | https://www.jstage.jst.go.jp/article/jea/35/6/35_JE20240277/_pdf |
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| author | Hiroshi Murayama Mika Sugiyama Hiroki Inagaki Ayako Edahiro Fumiko Miyamae Chiaki Ura Keiko Motokawa Tsuyoshi Okamura Shuichi Awata |
| author_facet | Hiroshi Murayama Mika Sugiyama Hiroki Inagaki Ayako Edahiro Fumiko Miyamae Chiaki Ura Keiko Motokawa Tsuyoshi Okamura Shuichi Awata |
| author_sort | Hiroshi Murayama |
| collection | DOAJ |
| description | Background: Community social capital is associated with various health outcomes; however, its impact on mortality is not fully understood, particularly in non-Western settings. This study examined the association between community-level social capital and all-cause mortality among community-dwelling older Japanese adults. Methods: The baseline data were obtained from a 2015 questionnaire survey for all 132,005 residents aged ≥65 years without long-term care insurance certification in Adachi Ward (consisting of 262 small districts) of the Tokyo metropolitan area. We measured two aspects of social capital: neighborhood cohesion as cognitive social capital and neighborhood network as structural social capital. For district-level social capital, we aggregated the individual responses of neighborhood cohesion and neighborhood network in each district. Results: A total of 75,338 were analyzed. A multilevel survival analysis with an average follow-up of 1,656 days showed that higher district-level neighborhood cohesion was associated with a lower risk of all-cause mortality in men (hazard ratio 0.92; 95% confidence interval [CI], 0.84–0.99 for the highest quintile and 0.91; 95% CI, 0.82–0.99 for the second, compared to the lowest), but not in women. This association was more pronounced in men aged 65–74 years. Conclusion: This study provides valuable insights from the Asian population. Men, who typically have fewer social networks and support systems than women, could receive more benefits from residing in a cohesive community, which may contribute to their longevity. These findings support public health strategies that bolster community social capital as a means of archiving longevity among older men, underscoring the importance of social integration in aging societies. |
| format | Article |
| id | doaj-art-db8bc5746aa04bdca16cf296098c0ccb |
| institution | OA Journals |
| issn | 0917-5040 1349-9092 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Japan Epidemiological Association |
| record_format | Article |
| series | Journal of Epidemiology |
| spelling | doaj-art-db8bc5746aa04bdca16cf296098c0ccb2025-08-20T02:02:51ZengJapan Epidemiological AssociationJournal of Epidemiology0917-50401349-90922025-06-0135627027710.2188/jea.JE20240277Community Social Capital and All-cause Mortality in Japan: Findings From the Adachi Cohort StudyHiroshi Murayama0Mika Sugiyama1Hiroki Inagaki2Ayako Edahiro3Fumiko Miyamae4Chiaki Ura5Keiko Motokawa6Tsuyoshi Okamura7Shuichi Awata8Research Team for Social Participation and Healthy Aging, Tokyo Metropolitan Institute for Geriatrics and Gerontology, Tokyo, JapanResearch Team for Promoting Independence and Mental Health, Tokyo Metropolitan Institute for Geriatrics and Gerontology, Tokyo, JapanResearch Team for Promoting Independence and Mental Health, Tokyo Metropolitan Institute for Geriatrics and Gerontology, Tokyo, JapanResearch Team for Promoting Independence and Mental Health, Tokyo Metropolitan Institute for Geriatrics and Gerontology, Tokyo, JapanResearch Team for Promoting Independence and Mental Health, Tokyo Metropolitan Institute for Geriatrics and Gerontology, Tokyo, JapanResearch Team for Promoting Independence and Mental Health, Tokyo Metropolitan Institute for Geriatrics and Gerontology, Tokyo, JapanResearch Team for Promoting Independence and Mental Health, Tokyo Metropolitan Institute for Geriatrics and Gerontology, Tokyo, JapanResearch Team for Promoting Independence and Mental Health, Tokyo Metropolitan Institute for Geriatrics and Gerontology, Tokyo, JapanIntegrated Research Initiative for Living Well with Dementia, Tokyo Metropolitan Institute for Geriatrics and Gerontology, Tokyo, JapanBackground: Community social capital is associated with various health outcomes; however, its impact on mortality is not fully understood, particularly in non-Western settings. This study examined the association between community-level social capital and all-cause mortality among community-dwelling older Japanese adults. Methods: The baseline data were obtained from a 2015 questionnaire survey for all 132,005 residents aged ≥65 years without long-term care insurance certification in Adachi Ward (consisting of 262 small districts) of the Tokyo metropolitan area. We measured two aspects of social capital: neighborhood cohesion as cognitive social capital and neighborhood network as structural social capital. For district-level social capital, we aggregated the individual responses of neighborhood cohesion and neighborhood network in each district. Results: A total of 75,338 were analyzed. A multilevel survival analysis with an average follow-up of 1,656 days showed that higher district-level neighborhood cohesion was associated with a lower risk of all-cause mortality in men (hazard ratio 0.92; 95% confidence interval [CI], 0.84–0.99 for the highest quintile and 0.91; 95% CI, 0.82–0.99 for the second, compared to the lowest), but not in women. This association was more pronounced in men aged 65–74 years. Conclusion: This study provides valuable insights from the Asian population. Men, who typically have fewer social networks and support systems than women, could receive more benefits from residing in a cohesive community, which may contribute to their longevity. These findings support public health strategies that bolster community social capital as a means of archiving longevity among older men, underscoring the importance of social integration in aging societies.https://www.jstage.jst.go.jp/article/jea/35/6/35_JE20240277/_pdfsocial capitalmortalityneighborhood cohesionneighborhood networkjapan |
| spellingShingle | Hiroshi Murayama Mika Sugiyama Hiroki Inagaki Ayako Edahiro Fumiko Miyamae Chiaki Ura Keiko Motokawa Tsuyoshi Okamura Shuichi Awata Community Social Capital and All-cause Mortality in Japan: Findings From the Adachi Cohort Study Journal of Epidemiology social capital mortality neighborhood cohesion neighborhood network japan |
| title | Community Social Capital and All-cause Mortality in Japan: Findings From the Adachi Cohort Study |
| title_full | Community Social Capital and All-cause Mortality in Japan: Findings From the Adachi Cohort Study |
| title_fullStr | Community Social Capital and All-cause Mortality in Japan: Findings From the Adachi Cohort Study |
| title_full_unstemmed | Community Social Capital and All-cause Mortality in Japan: Findings From the Adachi Cohort Study |
| title_short | Community Social Capital and All-cause Mortality in Japan: Findings From the Adachi Cohort Study |
| title_sort | community social capital and all cause mortality in japan findings from the adachi cohort study |
| topic | social capital mortality neighborhood cohesion neighborhood network japan |
| url | https://www.jstage.jst.go.jp/article/jea/35/6/35_JE20240277/_pdf |
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