Nonlinear and sex-specific associations of maternal vitamin D in early- and mid-pregnancy with childhood growth trajectories from birth to 6 years of age: a prospective cohort study in China (opens in new tab)

ObjectivesTo examine the associations of maternal vitamin D (VitD) concentrations in early- and mid-pregnancy with offspring growth trajectories from birth to 6 years of age, as well as childhood overweight.MethodsThis study was a prospective observational cohort study including 1,100 mother–child dyads from the Wuxi Birth Cohort. Offspring weight-, height-, and BMI-for-age Z-scores (WAZ, HAZ, and BAZ) were collected from birth to 6 years of age. Growth trajectories were identified using grou...