METHODS

We conducted a retrospective cohort study using administrative data from six states in the Medicaid Outcomes Distributed Research Network: Delaware, Kentucky, Maine, North Carolina, Pennsylvania, and West Virginia. The Medicaid Outcomes Distributed Research Network common data model contains a census of enrollment, inpatient and outpatient utilization, and pharmacy records and provides reliable measurement across participating sites. 6–8 We included 23,780 people who had a live birth or stillbirth between 2016 and 2019 and a diagnosis of OUD during pregnancy who were followed for 60 days postpartum; a subset of 19,697 (87%) people were followed for 6 months postpartum. This study was approved by site-specific institutional review boards: University of Delaware, University of Kentucky, University of Southern Maine, University of North Carolina at Chapel Hill, University of Pittsburgh, and West Virginia University.