Feasibility of an intensive outpatient treatment program for posttraumatic stress disorder within the veterans health care administration.

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Trauma-focused treatments for posttraumatic stress disorder (PTSD), such as Prolonged Exposure (PE) therapy and Cognitive Processing Therapy (CPT), are effective and supported by various Clinical Practice Guidelines; however, drop-out rates for the treatments are as high as 40% within clinical programs. One promising solution is delivering the evidence-based psychotherapies (EBPs) three or more times per week within an intensive outpatient program (IOP) for PTSD. The present study examined the feasibility and effectiveness of a relatively low-resourced PTSD IOP within a larger PTSD program at the Veterans Healthcare Administration. The intensive program offers two tracks (2 week or 4 week) grounded in the massed delivery of PE and CPT. Over a 12-month period, 351 veterans completed an assessment for PTSD and 172 started within one of the local PTSD programs (e.g., weekly, IOP, or residential). Results of the study demonstrated that the IOP is an acceptable (i.e., 87.3% completion rate) and effective (e.g., PTSD Checklist for Diagnostic and Statistical Manual [DSM-5] [PCL-5] decrease effect size d = 1.80) treatment option. There was also adequate demand for the program (e.g., 37.2% of patients engaged in care with the PTSD programs started the IOP), and the program was implemented with fidelity to the design. Taken together, the results of this study demonstrate that this low-resource IOP model is a promising approach to improve completion rates within the continuum of care for the treatment of PTSD. (PsycInfo Database Record (c) 2022 APA, all rights reserved).