Disparities in Maternal-Infant Drug Testing, Social Work Assessment, and Custody at 5 Hospitals.

Objective: To evaluate for disparities in peripartum toxicology testing among maternal-infant dyads across a hospital network and subsequent child protective services (CPS) involvement.

Methods: Retrospective chart review of 59,425 deliveries at 5 hospitals in Massachusetts between 2016 and 2020. We evaluated associations between maternal characteristics, toxicology testing, and child welfare involvement with disproportionality risk ratios and hierarchical logistical regression.