Prenatal marijuana exposure and neonatal outcomes: a retrospective cohort study

Abstract Objectives: Previous literature on the effects of marijuana exposure on neonatal outcomes has been limited by the reliance on maternal self-report. The objective of this study was to examine the relationship of prenatal marijuana exposure on neonatal outcomes in infants with marijuana exposure confirmed with meconium drug testing. Design: Retrospective cohort study. Setting and participants: Meconium drug screens obtained on infants born in a hospital system in the Pacific Northwest in the USA over a 2.5-year period. 1804 meconium