A national cohort study of community belonging and its influence on premature mortality

Author:

Michalski Camilla,Hurst Mack,Diemert Lori,Mah Sarah MORCID,Helliwell John,Kim Eric S,Rosella Laura CORCID

Abstract

BackgroundCommunity belonging, an important constituent of subjective well-being, is an important target for improving population health. Ageing involves transitioning across different social conditions thus, community belonging on health may vary across the life course. Using a nationally representative cohort, this study estimates the life stage-specific impact of community belonging on premature mortality.MethodsSix cycles of the Canadian Community Health Survey (2000–2012) were combined and linked to the Canadian Vital Statistics Database (2000–2017). Respondents were followed for up to 5 years. Multivariable-adjusted modified Poisson regression models were used to estimate the relative risk of premature mortality for three life stages: early adulthood (18–35 years), middle adulthood (36–55 years) and late adulthood (56–70 years).ResultsThe final analytical sample included 477 100 respondents. Most reported a ‘somewhat strong’ sense of belonging (45.9%). Compared with their ‘somewhat strong’ counterparts, young adults reporting a ‘somewhat weak’ sense of belonging exhibited an increased relative risk (RR) of 1.76 (95% CI 1.27 to 2.43) for premature mortality, whereas middle-aged adults reporting the same exhibited a decreased RR of 0.82 (95% CI 0.69, 0.98). Among older adults, groups reporting a ‘very strong’ (RR 1.10, 95% CI 1.01, 1.21) or a ‘very weak’ sense (RR 1.14, 95% CI 1.01, 1.28) of belonging exhibited higher RRs for premature mortality.ConclusionThe results demonstrate how community belonging relates to premature mortality differs across age groups underscoring the importance of considering life stage-specific perspectives when researching and developing approaches to strengthen belonging.

Funder

Canadian Institutes for Health Research

Publisher

BMJ

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