12/04/2025
Dissertation Defense Announcement
Doctoral Candidate: Monica Trevino (Cohort 2014)
Title: Geographic and Racial and Ethnic Disparities in Behavioral Health Services in Michigan Medicaid
Dissertation Committee – Chair, Rob Lyerla (WMU), PhD MGIS; Renée Canady PhD MPA (MPHI); Kieran Fogarty, PhD (WMU)
Date/Time: Dec 8, 2025, 12:30 pm Eastern Time (US and Canada)
Join Zoom Meeting: https://us02web.zoom.us/j/88966441863
Meeting ID: 889 6644 1863
ABSTRACT: Disparities in health access and outcomes exist across race, geography, and income. This is especially alarming in behavioral health services for the Medicaid population which has access to fewer supports and resources than the general population. This study investigates the extent and nature of geographic and racial/ethnic disparities in behavioral health services within the Michigan Medicaid program, focusing on three counties—Wayne, Kent, and Ingham—between 2018 and 2020. Using Medicaid claims and encounter data, the study analyzes two key quality measures: follow-up after emergency department visits for mental illness (FUM); and initiation and engagement in treatment for substance use disorder (IET).
Pairwise t-test analyses reveal significant racial disparities in both measures, with Black/African American Medicaid beneficiaries consistently less likely than their White counterparts to receive clinically appropriate care. The magnitude of these disparities varies by county and over time, with some counties showing persistent gaps and others exhibiting changes in disparity levels. Difference-in-difference-in-difference (DiDiD) analysis demonstrates non-significant findings for both measures.
The results underscore the need for targeted policy interventions based on community-level factors. Recommendations for future research include expanding the analysis to more recent data, exploring the impact of policy changes, and incorporating patient experience measures to better address the root causes of disparities.
Zoom is the leader in modern enterprise cloud communications.