OBJECTIVE: To evaluate the association between endometriosis and risk of severe maternal morbidity (SMM). METHODS: We conducted a population-based retrospective cohort study of 2,412,823 deliveries at hospitals in Quebec, Canada, between 1…
BackgroundNeonatal abstinence syndrome is increasingly prevalent, and may be related to opioid use disorders caused by postoperative prescriptions for pain control. We assessed the association of maternal prepregnancy surgery with risk of n…
ImportanceSevere morbidity in very preterm infants is associated with profound clinical implications on development and life-course health. However, studies of racial/ethnic disparities in severe neonatal morbidities are scant and suggest t…
BackgroundWe sought to determine if immune disorders early in life were associated with the later risk of Guillain-Barré syndrome, a neurological disorder thought to be infection-related.MethodsWe conducted a longitudinal cohort study with …