Prepregnancy body mass index and spina bifida: Potential contributions of bias.
Candice Y JohnsonMargaret A HoneinSonja A RasmussenPenelope P HowardsMatthew J StricklandW Dana Flandersnull nullPublished in: Birth defects research (2021)
Given our assumptions about the occurrence of bias in the study, our results suggest that exposure misclassification, selection bias, and confounding do not completely explain the association between prepregnancy obesity and spina bifida.