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Gender disparities in opioid treatment progress in methadone versus counseling

Authors
  • Guerrero, Erick1
  • Amaro, Hortensia2
  • Kong, Yinfei3
  • Khachikian, Tenie4
  • Marsh, Jeanne C.4
  • 1 Research to End Health Disparities Corp, 12300 Wilshire Blvd, Suite 210, Los Angeles, CA, 90025, USA , Los Angeles (United States)
  • 2 Florida International University, 11200 SW 8th ST, AHC4, Miami, Florida, 33199, USA , Miami (United States)
  • 3 California State University Fullerton, 800 N. State College Blvd, Fullerton, CA, 92831, USA , Fullerton (United States)
  • 4 University of Chicago, 969 E. 60th Street, Chicago, IL, 60637, USA , Chicago (United States)
Type
Published Article
Journal
Substance Abuse Treatment, Prevention, and Policy
Publisher
Springer Nature
Publication Date
Jun 23, 2021
Volume
16
Issue
1
Identifiers
DOI: 10.1186/s13011-021-00389-4
Source
Springer Nature
Keywords
Disciplines
  • Research
License
Green

Abstract

BackgroundIn the United States, the high dropout rate (75%) in opioid use disorder (OUD) treatment among women and racial/ethnic minorities calls for understanding factors that contribute to making progress in treatment. Whereas counseling and medication for OUD (MOUD, e.g. methadone, buprenorphine, naltrexone) is considered the gold standard of care in substance use disorder (SUD) treatment, many individuals with OUD receive either counseling or methadone-only services. This study evaluates gender disparities in treatment plan progress in methadone- compared to counseling-based programs in one of the largest SUD treatment systems in the United States.MethodsMulti-year and multi-level (treatment program and client-level) data were analyzed using the Integrated Substance Abuse Treatment to Eliminate Disparities (iSATed) dataset collected in Los Angeles County, California. The sample consisted of 4 waves: 2011 (66 SUD programs, 1035 clients), 2013 (77 SUD programs, 3686 clients), 2015 (75 SUD programs, 4626 clients), and 2017 (69 SUD programs, 4106 clients). We conducted two multi-level negative binomial regressions, one per each outcome (1) making progress towards completing treatment plan, and (2) completing treatment plan. We included outpatient clients discharged on each of the years of the study (over 95% of all clients) and accounted for demographics, wave, homelessness and prior treatment episodes, as well as clients clustered within programs.ResultsWe detected gender differences in two treatment outcomes (progress and completion) considering two outpatient program service types (MOUD-methadone vs. counseling). Clients who received methadone vs. counseling had lower odds of completing their treatment plan (OR = 0.366; 95% CI = 0.163, 0.821). Female clients receiving methadone had lower odds of both making progress (OR = 0.668; 95% CI = 0.481, 0.929) and completing their treatment plan (OR = 0.666; 95% CI = 0.485, 0.916) compared to male clients and receiving counseling. Latina clients had lower odds of completing their treatment plan (OR = 0.617; 95% CI = 0.408, 0.934) compared with non-Latina clients.ConclusionsClients receiving methadone, the most common and highly effective MOUD in reducing opioid use, were less likely to make progress towards or complete their treatment plan than those receiving counseling. Women, and in particular those identified as Latinas, were least likely to benefit from methadone-based programs. These findings have implications for health policy and program design that consider the need for comprehensive and culturally responsive services in methadone-based programs to improve outpatient treatment outcomes among women.

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