Fetal growth and psychiatric and socioeconomic problems: population-based sibling comparison

Background It is unclear whether associations between fetal growth and psychiatric and socioeconomic problems are consistent with causal mechanisms. Aims To estimate the extent to which associations are a result of unmeasured confounding factors using a sibling-comparison approach. Method We predicted outcomes from continuously measured birth weight in a Swedish population cohort ( n = 3 291 773), while controlling for measured and unmeasured...