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Community-Based Services for Homeless Adults Experiencing Concurrent Mental Health and Substance Use Disorders: A Realist Approach to Synthesizing Evidence

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Abstract

Consultations with community-based service providers in Toronto identified a lack of strong research evidence about successful community-based interventions that address the needs of homeless clients experiencing concurrent mental health and substance use disorders. We undertook a collaborative research effort between academic-based and community-based partners to conduct a systematic evidence synthesis drawing heavily from Pawson’s realist review methodology to focus on both whether programs are successful and why and how they lead to improved outcomes. We examined scholarly and nonscholarly literature to explore program approaches and program elements that lead to improvements in mental health and substance use disorders among homeless individuals with concurrent disorders (CD). Information related to program contexts, elements, and successes and failures were extracted and further supplemented by key informant interviews and author communication regarding reviewed published studies. From the ten programs that we reviewed, we identified six important and promising program strategies that reduce mental health and, to a far lesser degree, substance use problems: client choice in treatment decision-making, positive interpersonal relationships between client and provider, assertive community treatment approaches, providing supportive housing, providing supports for instrumental needs, and nonrestrictive program approaches. These promising program strategies function, in part, by promoting and supporting autonomy among homeless adults experiencing CD. Our realist informed review is a useful methodology for synthesizing complex programming information on community-based interventions.

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Notes

  1. Community agencies forming the partnership with CRICH: Access Alliance; Ontario Federation of Indian Friendship Centres; Sistering, a Women’s Place; Street Health; South Riverdale Community Health Centre.

  2. CRICH faculty and research fellows had expertise in the following areas: social epidemiology, biostatistics, clinical psychology, sociology, family medicine, aboriginal health, ethics, public health sciences, knowledge translation, and social work.

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Acknowledgements

This research was supported by a Canadian Institutes for Health Research Strategic Training Initiative in Health Research grant (STO-64598), the Ontario Ministry of Health and Long Term Care, and the Alma and Baxter Ricard Chair in Inner City Health (PO). We would like to thank the following individuals who participated in the research activities: Gladis Chow, Susan Clancy, Jessica Hill, Axelle Janczur, Erika Khandor, Kelly Murphy, Rosane Nisenbaum, Lynne Raskin, Anjali Sharma, Janet Smylie, Melissa Tapper, Charoula Tsamis, Qamar Zaidi, Carolyn Ziegler, and Marcqueline Chiona Zulu.

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Correspondence to Patricia O’Campo.

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O’Campo, P., Kirst, M., Schaefer-McDaniel, N. et al. Community-Based Services for Homeless Adults Experiencing Concurrent Mental Health and Substance Use Disorders: A Realist Approach to Synthesizing Evidence. J Urban Health 86, 965–989 (2009). https://doi.org/10.1007/s11524-009-9392-1

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