Maternal pre-pregnancy BMI and intelligence quotient (IQ) in 5-year-old children: a cohort based study.

ABSTRACT:

Background

An association between maternal pre-pregnancy BMI and childhood intelligence quotient (IQ) has repeatedly been found but it is unknown if this association is causal or due to confounding caused by genetic or social factors.

Methods

We used a cohort of 1,783 mothers and their 5-year-old children sampled from the Danish National Birth Cohort. The children participated between 2003 and 2008 in a neuropsychological assessment of cognitive ability including IQ tests taken by both the mother and the child. Linear regression analyses were used to estimate the associations between parental BMI and child IQ adjusted for a comprehensive set of potential confounders. Child IQ was assessed with the Wechsler Primary and Preschool Scales of Intelligence--Revised (WPPSI-R).

R

SUBMITTER: Bliddal M 

PROVIDER: S-EPMC3984139 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature