4.5 Article

Latent class trajectories of socioeconomic position over four time points and mortality: the Uppsala Birth Cohort Study

Journal

EUROPEAN JOURNAL OF PUBLIC HEALTH
Volume 32, Issue 4, Pages 522-527

Publisher

OXFORD UNIV PRESS
DOI: 10.1093/eurpub/ckac060

Keywords

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Funding

  1. Swedish Research Council for Health, Working Life and Welfare [2018-00211]
  2. European Union [635 316]
  3. Formas [2018-00211] Funding Source: Formas
  4. Forte [2018-00211] Funding Source: Forte

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The study examines the effects of long-term socioeconomic position (SEP) changes on late-life mortality. Through latent class analysis, it is found that upward mobility in SEP is associated with a reduced risk of mortality from various causes, highlighting the importance of early interventions in preventing deaths.
Background The study assessed socioeconomic position (SEP) over four time points and employed a latent class analysis (LCA) to explore the associations between longitudinal SEP trajectories and late-life mortality. Methods We analyzed a cohort of 11 336 members born at the Uppsala University Hospital, Sweden during 1915-29 and followed up for mortality during 1980-2008. SEP was measured at birth, age 10, mid-adulthood and late adulthood. LCA was used to identify SEP trajectories, which were linked to all-cause and cause-specific mortality through Cox proportional hazard regression models. Results The age and birth cohort adjusted hazard ratio (HR) of all-cause mortality among the upwardly mobile from middle vs. stable low SEP was 28% lower in men [HR: 0.72; 95% confidence interval (95% CI): 0.65, 0.81] and 30% lower in women (HR: 0.70; 95% CI: 0.62, 0.78). The corresponding HR of cardiovascular mortality was 30% lower in men (HR: 0.70; 95% CI: 0.60, 0.82) and 31% lower in women (HR: 0.69; 95% CI: 0.58, 0.83). Upward mobility was also associated with decreased HR of mortality from respiratory diseases and injuries among men and from cancer, respiratory diseases, injuries and mental disorders among women. The upwardly mobile were similar to the stable high group in terms of their HRs of mortality from all-causes and cardiovascular, cancer and mental diseases. Conclusions Upward mobility appeared to be protective of mortality from a wide range of causes. Interventions aiming to prevent deaths can benefit from creating optimal conditions earlier in the life course, letting disadvantaged children maximize their socioeconomic and health potentials.

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