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  • Title: Homelessness and publicly funded substance use disorder treatment in California, 2016-2019: Analysis of treatment needs, level of care placement, and outcomes.
    Author: Padwa H, Bass B, Urada D.
    Journal: J Subst Abuse Treat; 2022 Jun; 137():108711. PubMed ID: 35012791.
    Abstract:
    INTRODUCTION: Both homelessness and substance use have increased in recent years. People experiencing homelessness (PEH) are at increased risk for health problems and early mortality, both of which can be exacerbated by substance use disorders (SUD). Specialty SUD treatment is likely needed to address substance use among PEH, and more than 232,000 PEH received treatment from U.S. publicly funded SUD programs in 2015. The objective of this paper is to develop a better understanding of the SUD services that PEH receive in publicly funded treatment programs by (1) describing the characteristics and needs of the PEH population served in publicly funded SUD treatment programs, compared to non-PEH populations; (2) determining if differences exist in treatment placement (level of care) for PEH and non-PEH; and (3) gauging how successful programs are in treating PEH compared to non-PEH. METHODS: Observational study using a two-way fixed effect model to determine associations among homelessness, retention, and outcomes among Medicaid beneficiaries receiving SUD treatment in California from 2016 to 2019 (n = 638,953). The study team used ordinary least squares (OLS) regression to measure the degree to which homelessness was associated with baseline characteristics, SUD services received, and treatment outcomes. RESULTS: PEH were significantly more likely than non-PEH to be having methamphetamine or heroin as their primary substance. PEH had greater frequency of primary substance use prior to entering treatment, greater ER and hospital utilization, more criminal justice involvement, and greater prevalence of mental health diagnoses and unemployment. PEH were 9.82% more likely than non-PEH to receive residential treatment and 7.11% less likely than non-PEH to receive treatment intensive outpatient modalities. Homelessness was associated with an 11.90% decrease in retention, and a 19.40% decrease in successful discharge status. These trends were consistent across outpatient, intensive outpatient, and residential modalities. CONCLUSIONS: Developing SUD treatment capacity and housing supports can improve treatment outcomes for PEH. Potential strategies to improve SUD services for PEH include providing more contingency management, opioid pharmacotherapies, programming designed to treat individuals with co-occurring mental health disorders, and resources for housing options that can support PEH in their recovery.
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