Health Service Utilization Patterns Among Medicaid Enrollees With Intellectual and Developmental Disabilities Before and During the COVID-19 Pandemic: Implications for Pandemic Response and Recovery Efforts.

Objectives: To assess the impact of COVID-19 on health service utilization of adults with intellectual and developmental disabilities (IDDs) through an analysis of Medicaid claims data.

Design: Retrospective cohort study of Medicaid claims.

Setting And Participants: Medicaid members aged 25 to 64 years from January 1, 2018, to March 31, 2021, from the states of Louisiana, Pennsylvania, and Wyoming.