Opioid use during pregnancy has greatly increased in the past 3 decades.1 Medications for opioid use disorder (MOUD) are an effective treatment, but use of MOUD remains low.1 Little is known about the association between MOUD use in pregnancy and improved outcomes for children of pregnant people with opioid use disorder (OUD).2-5 This omission from the literature is important, as treatment during the prenatal period may have long-term implications for infant health by ameliorating the harm caused by untreated OUD. Using a multistate Medicaid claims database on mother-infant dyads, we examined the association between receipt of prenatal MOUD and health services use (recommended number of well-child visits, emergency department [ED] visits, and rehospitalization) during the first year of life. [JAMA Network]
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