Importance
With the future of the Affordable Care Act and Medicaid program unclear, it is critical to examine the geographic availability of specialty mental health (MH) treatment resources that serve low-income populations across local communities.
Objective
To examine the geographic availability of community-based specialty MH treatment resources and how these resources are distributed by community socioeconomic status (SES).
Design
Measures of MH specialty resource availability were derived for 31,836 zip-code tabulation areas (ZCTAs) using national data. Analyses examined the association between community SES (assessed by median household income quartiles) and resource availability using logistic regressions. Models controlled for ZCTA-level demographic characteristics and state indicators.
Main Outcome Measures
Dichotomous indicators for whether a ZCTA had any: (1) outpatient MH treatment facility (more than nine-tenths of which offer payment arrangements for low-income populations); (2) office-based practice of MH specialist physician(s); (3) office-based practice of non-physician MH practitioners (e.g., therapists); and (4) facility or office-based practice (i.e., any resource).
Results
More than four-tenths (42.5%) of communities in the highest income quartile had any community-based MH treatment resource versus 23.1% of communities in the lowest income quartile (Adjusted odds ratio [AOR]=1.74, 95% Confidence Interval [CI]=1.50,2.03).
When examining the distribution of MH specialist providers, 25.3% of the highest income communities had any MH specialist physician practice versus 8.0% of the lowest income communities (AOR=3.04, 95% CI=2.53,3.66). Similarly, 35.1% of the highest income communities had any non-physician MH specialist practice versus 12.9% of the lowest income communities (AOR=2.77, 95% CI=2.35,3.26).
In contrast, MH treatment facilities were less likely to be located in the highest versus lowest income communities (12.9% versus 16.5%, AOR=0.43, 95% CI=0.37,0.51). Over seven-tenths of the lowest income communities with any resource had an outpatient MH treatment facility.
Conclusions and Relevance
MH treatment facilities are more likely to be located in poorer communities, whereas office-based practices of MH specialist providers are more likely to be located in higher income communities. These findings indicate that MH treatment facilities constitute the backbone of the specialty MH treatment infrastructure in low-income communities. Policies are needed to support and expand available resources for this critical infrastructure.