Association of childhood obesity with risk of early all-cause and cause-specific mortality: A Swedish prospective cohort study

Louise Lindberg, Pernilla Danielsson, Martina Persson, Claude Marcus and Emilia Hagman

PLOS Medicine, 2020, vol. 17, issue 3, 1-14

Abstract: Background: Pediatric obesity is associated with increased risk of premature death from middle age onward, but whether the risk is already increased in young adulthood is unclear. The aim was to investigate whether individuals who had obesity in childhood have an increased mortality risk in young adulthood, compared with a population-based comparison group. Methods and findings: In this prospective cohort study, we linked nationwide registers and collected data on 41,359 individuals. Individuals enrolled at age 3–17.9 years in the Swedish Childhood Obesity Treatment Register (BORIS) and living in Sweden on their 18th birthday (start of follow-up) were included. A comparison group was matched by year of birth, sex, and area of residence. We analyzed all-cause mortality and cause-specific mortality using Cox proportional hazards models, adjusted according to group, sex, Nordic origin, and parental socioeconomic status (SES). Over 190,752 person-years of follow-up (median follow-up time 3.6 years), 104 deaths were recorded. Median (IQR) age at death was 22.0 (20.0–24.5) years. In the childhood obesity cohort, 0.55% (n = 39) died during the follow-up period, compared to 0.19% (n = 65) in the comparison group (p

Date: 2020
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pmed00:1003078

DOI: 10.1371/journal.pmed.1003078

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