Racial/ethnic differences in treatment quality among youth with primary care provider-initiated versus mental health specialist-initiated care for major depressive disorders

Abstract

Objectives: To compare the racial/ethnic differences in treatment quality among youth with primary care provider-initiated versus mental health specialist-initiated care for major depressive disorders (MDD).

Methods: A retrospective cohort study was conducted using the 2005-2007 Medicaid claims data from Texas. Youth aged 10-20 during the study period were identified if they had two consecutive MDD diagnoses and received either medications for MDD or psychotherapy. Patients who received ≥84 days of medications and/or ≥4 sessions of psychotherapy for MDD treatment during 4 months of follow-up were considered meeting the minimum adequacy of treatment.

Results: The generalized linear multilevel model (MLM) analysis revealed that both Hispanics and Blacks were approximately 30% less likely to receive adequate treatment (Hispanics - OR: 0.67; 95% CI: 0.6-0.8) (Blacks - OR: 0.66; 95% CI: 0.6-0.8) and Hispanic children were 50% more likely to undergo MH-related hospitalization (OR: 1.53; 95% CI: 1.1-2.2) compared to their White counterparts. The odds of meeting the minimum MDD treatment adequacy were comparable between pediatric MDD cases first identified by primary care providers (PCP-I) and psychiatrists (PSY-I) (PCP-I vs. PSY-I: OR: 0.97; 95% CI: 0.8-1.2), and slightly lower in those first identified by social workers/psychologists (SWP-I) as compared to PSY-I (SWP-I vs. PSY-I: OR: 0.81; 95% CI: 0.7-0.9). In all models, the interaction between race/ethnicity and type of provider who initiated MDD care was not statistically significant.

Conclusions: Minority youths received less adequate MDD treatment compared to Whites. Hispanic children had the highest risk of having mental health-related hospitalization. The specialty of provider who initiated MDD care had limited impact on treatment quality and was not associated with the racial/ethnic variations in treatment completion and mental health-related hospitalizations.

Keywords: Medicaid; antidepressants; mental health-related hospitalization; minimum adequacy of treatment; primary care provider; psychiatrist; psychologist; psychotherapy; social worker.