Background: This study examines changes in the substance use disorder (SUD) treatment gap and barriers to treatment for low-income adults following Affordable Care Act (ACA) implementation.
Methods: National Survey on Drug Use and Health (NSDUH) data were pooled to assess pre-ACA (2009-2013) and post-ACA (2015-2019) implementation. The sample (n = 44,622) included respondents 18-64 years old, income <200% federal poverty level, and meeting SUD criteria for abuse or dependence of heroin, powdered cocaine, crack cocaine, marijuana, or alcohol. The primary outcome was NSDUH-defined past-year illicit drug or alcohol treatment gap (needing but not receiving SUD specialty treatment). A secondary analysis assessed barriers to SUD treatment including insurance-related barriers, stigma, barriers to access, priority of treatment, and no interest in stopping substance use.
Results: Ninety-three percent of respondents reported a drug or alcohol treatment gap before and after ACA implementation. No interest in stopping use was the greatest barrier (40%), followed by insurance-related barriers (39%) and stigma (20%). After adjusting for covariates, results did not show a significant change in SUD treatment gap post-ACA compared to pre-ACA (adjusted odds ratio [aOR]=1.11, 95% confidence interval [CI]=0.97, 1.28, p = 0.13). Compared to pre-ACA, odds of reporting stigma-related barriers (aOR=1.66, 95% CI=1.17, 2.37, p = 0.01) and access-related barriers (aOR=1.79, 95% CI=1.34, 2.38, p < 0.001) increased post-ACA.
Conclusions: There was no significant change in the prevalence of SUD treatment gap after ACA implementation. Increasing access to SUD treatment for low-income individuals will require intervening at multiple socioecological levels beyond reforming treatment financing.
Keywords: Affordable care act; Barriers; Low-income; Substance abuse treatment; Substance use disorder.