Impact of maternal prepregnancy body mass index on neonatal outcomes following extremely preterm birth
Objective: Extremes of prepregnancy maternal BMI increase neonatal mortality and morbidity at term. They also increase the risk of extremely preterm (EP, i.e., <27 weeks' gestational age) births. However, the association between maternal BMI and outcomes for EP babies is poorly understood. Methods: We used a cross-country design, bringing together the following three population-based, prospective,