Original ArticlesBarriers and Facilitators to Implementing a Short-Term Transdiagnostic Mental Health Treatment for Homeless PersonsYoun, Soo Jeong PhD*; Sauer-Zavala, Shannon PhD†; Patrick, Kaylie A. MPH‡; Ahles, Emily M. BA‡; Aguilar Silvan, Yesenia BA‡; Greig, Astrea PsyD§; Marques, Luana PhD*; Shtasel, Derri L. MD, MPH*Author Information *Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School; †Department of Psychological and Brain Sciences, Boston University; ‡Department of Psychiatry, Massachusetts General Hospital; and §Boston Healthcare for the Homeless Program, Boston, Massachusetts. Send reprint requests to Soo Jeong Youn, PhD, Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, 1 Bowdoin Street, 6th floor, Boston, MA 02114. E-mail: [email protected]. The Journal of Nervous and Mental Disease: July 2019 - Volume 207 - Issue 7 - p 585-594 doi: 10.1097/NMD.0000000000001010 Buy Metrics Abstract Despite the significant mental health needs and comorbidity in homeless individuals, there is a “science-practice gap” between the available evidence-based treatments (EBTs) and their lack of use in community health centers servicing homeless populations. To address this gap, it is imperative to evaluate and attend to the contextual factors that influence the implementation process of EBTs before their integration into routine care. The study aims to evaluate the barriers and facilitators to implementing a transdiagnostic EBT in a community health center serving homeless individuals. The results of the thematic analyses (7 focus groups, 67 participants) yielded 8 themes for barriers and 10 themes for facilitators to implementation. The findings of the current study highlight common tensions faced by community programs and clinicians when working toward integrating EBTs across different types of populations, and those unique to homeless persons. Results can inform subsequent strategies used in implementing EBTs. Copyright © 2019 Wolters Kluwer Health, Inc. All rights reserved.