The Impact of a Population-Based System of Care Intervention on Enhanced Prenatal Care and Service Utilization Among Medicaid-Insured Pregnant Women.

INTRODUCTION: Enhanced prenatal/postnatal care home visiting programs for Medicaid-insured women have significant positive impacts on care and health outcomes. However, enhanced prenatal care participation rates are typically low, enrolling <30% of eligible women. This study investigates the impacts of a population-based systems approach on timely enhanced prenatal care participation and other healthcare utilization. METHODS: This quasi-experimental, population-based, difference-in-differences study used linked birth certificates, Medicaid claims, and enhanced prenatal care data from complete statewide Medicaid birth cohorts (2009 to 2015), and was analyzed in 2019-2020. The population-based system intervention included cross-agency leadership and work groups, delivery system redesign with clinical-community linkages, increased enhanced prenatal care-Community Health Worker care, and patient empowerment. Outcomes included enhanced prenatal care participation and early participation, prenatal care adequacy, emergency department contact, and postpartum care. RESULTS: Enhanced prenatal care (7.4 percentage points, 95% CI=6.3, 8.5) and first trimester enhanced prenatal care (12.4 percentage points, 95% CI=10.2, 14.5) increased among women served by practices with established clincial-community linkages, relative to that among the comparator group. First trimester enhanced prenatal care improved in the county (17.9, 95% CI=15.7, 20.0), emergency department contact decreased in the practices (-11.1, 95% CI= -12.3, -9.9), and postpartum care improved in the county (7.1, 95% CI=6.0, 8.2). Enhanced prenatal care participation for Black women served by the practices improved (4.4, 95% CI=2.2, 6.6) as well as early enhanced prenatal care (12.3, 95% CI=9.0, 15.6) and use of postpartum care (10.4, 95% CI=8.3, 12.4). CONCLUSIONS: A population systems approach improved selected enhanced prenatal care participation and service utilization for Medicaid-insured women in a county population, those in practices with established clinical-community linkages, and Black women.

Clinical-Community Linkages: The Impact of Standard Care Processes that Engage Medicaid-Eligible Pregnant Women in Home Visiting.

BACKGROUND: To better address physical, emotional, and social needs of Medicaid-insured pregnant women, a Federally Qualified Health Center and a hospital-based obstetrics and gynecology residency practice collaborated with their agency-based state Medicaid-sponsored home visiting program, the Maternal Infant Health Program (MIHP). In partnership, both practice sites created patient standards of care to identify and engage eligible pregnant women into underutilized home visiting services for enhanced prenatal care coordination. The purpose of this study was to describe how each practice operationalized clinical-community linkage strategies that best suited their setting and to determine if efforts resulted in improved MIHP participation and other service use. METHODS: Using linked administrative data, a quasi-experimental pre-post difference-in-difference design was used to examine changes in MIHP participation, adequate prenatal care, emergency department use, and postpartum care among patients in each practice compared with the same birth cohorts between 2010 and 2015 in the rest of the state. RESULTS: When compared with similar women from the rest of the state, the Federally Qualified Health Center observed a 9.1 absolute percentage points (APP; 95% confidence interval [CI], 8.1-10.1) increase in MIHP participation and 12.5 APP (95% CI, 10.4-14.6) increase in early first trimester enrollment. The obstetrics and gynecology residency practice experienced increases of 4.4 APP (95% CI, 3.3-5.6) in overall MIHP participation and 12.5 APP (95% CI, 10.3-14.7) in first trimester enrollment. Significant improvements in adequate prenatal care, emergency department use, and postpartum visit completion were also observed. CONCLUSIONS: Clinical-community linkages can significantly improve participation of Medicaid-insured women in an evidence-based home visiting program and other prenatal services. This work is important because health providers are looking for ways to create clinical-community linkages.