Genetic and environmental influences on educational disparities in adult weight change: an individual-based pooled analysis of 11 twin cohorts.

ABSTRACT:

Introduction

Educational attainment (EA) is negatively associated with body mass index (BMI) but less is known about the association between EA and adult BMI change. We analyzed the role of genetic and environmental factors in the association between EA and BMI trajectory components over adulthood.

Data and methods

Pooled data from 59,490 twins aged 31-99 years (49% women) across 11 cohorts with EA and repeated measures of BMI were used. BMI trajectory components (baseline BMI and BMI change per decade) were estimated using linear mixed-effects (LME) and delta slope methods. EA was derived by regressing years of education on birth year and cohort. Associations between EA and BMI trajectories were evaluated with LME models in both cohort-specific and pooled data. Genetic and

SUBMITTER: Obeso A 

PROVIDER: S-EPMC12668070 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature