The association of pregestational and gestational diabetes with severe neonatal morbidity and mortality

To estimate the association between maternal diabetes and severe neonatal morbidity. Retrospective cohort study of nonanomalous neonates born 240−416 weeks’ gestation from two large multisite U.S. cohorts, Cesarean Registry and Consortium on Safe Labor. The exposure was pregestational versus gestational versus no diabetes. The composite neonatal outcome included respiratory distress syndrome, mechanical ventilation, necrotizing enterocolitis,...