A, Extent of medication use. Adjusted for age, educational level, rural residence, enrollment in Medicaid (MassHealth) during the month of delivery, depression/anxiety diagnosis, emergency department use, and opioid prescription. B, Type of medication used. Adjusted for age, educational level, rural residence, enrollment in Medicaid (MassHealth) during the month of delivery, depression/anxiety diagnosis, emergency department use, and opioid prescription. aOR indicates adjusted odds ratio, and OUD, opioid use disorder.