Birth outcomes with prescribed chronic and acute opioid exposure during pregnancy

Objectives: To assess the effects of no, any, and acute and chronic prescription opioid exposure for pain during pregnancy on maternal and fetal outcomes.Design: Retrospective cohort study.Setting: Integrated healthcare delivery system. Information on pregnancies and their outcomes were obtained from administrative data and verified via manual chart review.Participants: Women ≥ 18 years of age who were pregnant between January 1, 2012 and May...