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Integrating the Integrated: Merging Integrated Dual Diagnosis Treatment (IDDT) with Housing First

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This study reports on a housing program that merged two evidence-based practices frequently applied in tandem: Integrated Dual Diagnosis Treatment and Housing First. Quantitative measures show that consumers in the program were receptive to supportive housing and core services. These quantitative measures, when considered alongside qualitative interviews, suggest that in order for more consumers to move through the IDDT stages of educational and vocational advancement, the staff will need to emphasize the permanence of supportive housing. Thus, the study also demonstrates the importance of integrating results of qualitative evaluations with quantitative data to strengthen a program’s evidence base.

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The authors would like to thank the team at Mercy Behavioral Health’s New Lease on Life Program, including: Meghan Huerbin, LPC, Amy Beadling, MSW, Shannon Brogdon, Victoria Norkevicus, and Robert Jumba, MA.


This evaluation was funded by the Substance Abuse and Mental Health Services Administration (SAMHSA) (Grant Number SM059154).

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Correspondence to Janice Pringle.

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The authors declare that they have no conflicts of interest.

Ethical Approval

This article includes an evaluation involving human subjects (interviewees) but was approved as exempt from further review by the University of Pittsburgh Institutional Review Board. Informed, verbal consent was obtained from all individual participants included in the evaluation.

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Pringle, J., Grasso, K. & Lederer, L. Integrating the Integrated: Merging Integrated Dual Diagnosis Treatment (IDDT) with Housing First. Community Ment Health J 53, 672–678 (2017).

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