Colleen MacCallum-Bridges, PhD, MS
Research Assistant Professor, Department of Pediatrics
Biography
Dr. Colleen L. MacCallum-Bridges is an epidemiologist and biostatistician whose research examines macro-level drivers of maternal and child health, with the goal of producing evidence that can inform interventions to improve maternal and child health and reduce health disparities. Her current research focuses primarily on two areas: identifying potential causes of recent declines in maternal mental health and evaluating the impact of contemporary Medicaid eligibility changes, including postpartum eligibility extensions and continuous eligibility provisions, on maternal and child health.
Education
PhD, Epidemiology, Michigan State University, 2022
MS, Biostatistics, Grand Valley State University, 2014
BA, Statistics, Grand Valley State University, 2012
Selected Publications
MacCallum-Bridges CL, Admon LK, Patrick SW, Kozhimannil KB, Daw JR. Continuous Medicaid Eligibility, Child Insurance, and Health Care Use. Pediatrics. 2026;157(1):e2025072529. doi:10.1542/peds.2025-072529
Daw JR, MacCallum-Bridges CL, Admon LK. Trends and Disparities in Maternal Self-Reported Mental and Physical Health. JAMA Intern Med. 2025;185(7):857-865. doi:10.1001/jamainternmed.2025.1260
Received coverage in major national news, TV, and radio outlets including the New York Times, PBS, ABC News, NPR, Fox News, and others
MacCallum-Bridges CL, Admon LK, Daw JR. Childcare disruptions and maternal health during the COVID-19 pandemic. Health Aff Sch. 2024;2(5):qxae061. Published 2024 May 21. doi:10.1093/haschl/qxae061
Daw JR, MacCallum-Bridges CL, Kozhimannil KB, Admon LK. Continuous Medicaid Eligibility During the COVID-19 Pandemic and Postpartum Coverage, Health Care, and Outcomes. JAMA Health Forum. 2024;5(3):e240004. Published 2024 Mar 1. doi:10.1001/jamahealthforum.2024.0004
Margerison CE, Kaestner R, Chen J, MacCallum-Bridges C. Impacts of Medicaid Expansion Before Conception on Prepregnancy Health, Pregnancy Health, and Outcomes. Am J Epidemiol. 2021;190(8):1488-1498. doi:10.1093/aje/kwaa289