• Takashi Oshio, Kemmyo Sugiyama, and Toyo Ashida.
• Institute of Economic Research, Hitotsubashi University, 2-1 Naka, Tokyo, Kunitachi, 186-8603, Japan. oshio@ier.hit-u.ac.jp.
• J Urban Health. 2022 Apr 1; 99 (2): 235244235-244.

AbstractSocial participation (SP) is known to have a favorable impact on an individual's health. This study examined whether residing in a neighborhood with a high SP level would be predictive of delayed deterioration in health outcomes, even after controlling for individual SP. With the 14-wave longitudinal data of 32,388 individuals (15,749 men and 16,639 women) aged 50-59 years residing in 2,477 neighborhoods in 2005, we used multilevel Cox proportional hazards models to examine the impact of neighborhood SP on the onset of problems in activities of daily living (ADL), poor self-rated health, and psychological distress. Residing in a neighborhood with high SP levels modestly postponed the onset of health problems in individuals. The hazard ratio (HR) of ADL problems in response to residing in a neighborhood with above-average SP levels was 0.92 (95% confidence interval [CI]: 0.85-0.99) and 0.93 (95% CI: 0.87-1.00) for men and women, respectively, even after controlling for an individual's SP and other attributes. The results for other health outcomes showed a similar pattern. These findings suggest that high neighborhood SP has a favorable impact on health among middle-aged adults, independent of individual SP. Policy measures to enhance and promote neighborhood SP are thus needed in terms of public health.© 2022. The New York Academy of Medicine.

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