Massachusetts Medicaid ACO Program May Have Improved Care Use And Quality For Pregnant And Postpartum Enrollees

Health Affairs September 1, 2024
Megan B. Cole, Jihye Kim, Sarah H. Gordon, Karen E. Lasser, Collette Ncube, Elizabeth Patton, Nigel Deen, Kathleen Carey, Howard Cabral, Anna L. Goldman, Shannon Ogden, Lois McCloskey

Abstract

Value-based care models, such as Medicaid accountable care organizations (ACOs), have the potential to improve access to and quality of care for pregnant and postpartum Medicaid enrollees. We leveraged a natural experiment in Massachusetts to evaluate the effects of Medicaid ACOs on quality-of-care-sensitive measures and care use across the prenatal, delivery, and postpartum periods. Using all-payer claims data on Medicaid-covered live deliveries in Massachusetts, we used a difference-in-differences approach to compare measures before (the first quarter of 2016 through the fourth quarter of 2017) and after (the third quarter of 2018 through the fourth quarter of 2020) Medicaid...

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