Birth order and health events attributable to alcohol and narcotics in midlife: A 25-year follow-up of a national Swedish birth cohort and their siblings

Bishop, Lauren; Barclay, Kieron J.

doi:10.1016/j.ssmph.2022.101219

Cited by 1 publication

(1 citation statement)

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“…We have advanced the research field in some relevant respects. Apart from mortality studies, few papers have estimated the associations between birth order and health outcomes in prime working ages using sibling fixed effects [ 50 ]. Moreover, a large part of the literature has focused on mental health at younger ages [e.g.…”

Section: Discussionmentioning

confidence: 99%

Birth order and sickness absence: Register-based evidence from Finland

Reini

Saarela

2023

PLoS ONE

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Background In working ages, sickness absence is strongly related to persons’ health condition. We studied how birth order was associated with receipt of sickness allowance, distinguishing between mental disorders, musculoskeletal disorders and injuries. Methods A follow-up study based on the entire Finnish population was conducted for sibling groups born 1969–1982, in which each sibling was observed from age 35 years in the period 2004–2018. Focus was on within-family variation in first-time sickness allowance receipt. Results Results of stratified Cox regressions revealed that each increase in birth order was associated with a slightly higher risk of sickness absence from any cause. For mental disorders, associations were stronger; the hazard ratio as compared to first borns was 1.03 (95% CI: 0.98–1.08) of second borns, 1.10 (0.99–1.22) of third borns, and 1.52 (1.25–1.85) of fourth or higher borns. Corresponding numbers for musculoskeletal disorders were 1.12 (1.07–1.17), 1.19 (1.09–1.30) and 1.15 (0.96–1.38), and for injuries 1.06 (1.01–1.12), 1.09 (1.21–1.14) and 0.96 (0.77–1.20), respectively. Conclusions Birth order effects were generally stronger for women than men, and to some extent influenced by educational level, occupation, income, and family composition. Possible latent mechanisms behind the associations may relate to within-family dynamics at childhood.

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Section: Discussionmentioning

confidence: 99%