Maternal dietary patterns during pregnancy and child internalising and externalising problems. The Generation R Study.

Within a population-based cohort, wthe authors assessed maternal diet using a food frequency questionnaire. Three dietary patterns were derived by means of Principal Component Analysis. Child internalising (emotionally reactive, anxious/depressed or withdrawn, having somatic complaints) and externalising problems (inattention, aggression) were assessed with the Child Behaviour Checklist at 1.5, 3 and 6 years in 3104 children. The authors assessed the association of maternal Mediterranean, Traditionally Dutch and Confectionary dietary pattern during pregnancy with child internalising and externalising problems. After adjustment, the Mediterranean diet was negatively associated (ORper SD in Mediterranean score = 0.90, 95% CI: 0.83-0.97) and the Traditionally Dutch diet was positively associated with child externalising problems (ORper SD in Traditionally Dutch score = 1.11, 95% CI: 1.03-1.21). Neither diet was associated with internalising problems. externalising problems. Further research is needed to unravel the effects of nutrient interplay during and after pregnancy on child behavioural development.