This research was supported by Department of Defense Grant W81XWH-07-PTSD-IIRA (PI: Acierno). Several authors are also core and affiliate members of the Ralph H. Johnson VAMC Research Enhancement Award Program (REA08–261; PI: Egede), the Center for Disease Prevention and Health Interventions for Diverse Populations. The views expressed in this article are those of the authors and do not necessarily reflect the position or policy of the Department of Veterans Affairs or the United States government. There are no conflicts of interest to disclose.
PREDICTORS OF COMPLETION OF EXPOSURE THERAPY IN OEF/OIF VETERANS WITH POSTTRAUMATIC STRESS DISORDER
Version of Record online: 21 OCT 2013
Published 2013. This article is a U.S. Government work and is in the public domain in the USA.
Depression and Anxiety
Volume 30, Issue 11, pages 1107–1113, November 2013
How to Cite
Gros, D. F., Price, M., Yuen, E. K. and Acierno, R. (2013), PREDICTORS OF COMPLETION OF EXPOSURE THERAPY IN OEF/OIF VETERANS WITH POSTTRAUMATIC STRESS DISORDER. Depress. Anxiety, 30: 1107–1113. doi: 10.1002/da.22207
Contract grant sponsor: Department of Defense Grant; Contract grant number: W81XWH-07-PTSD-IIRA (PI: Acierno)
- Issue online: 4 NOV 2013
- Version of Record online: 21 OCT 2013
- Manuscript Accepted: 20 SEP 2013
- Manuscript Revised: 1 AUG 2013
- Manuscript Received: 25 JUN 2013
- Department of Defense. Grant Number: W81XWH-07-PTSD-IIRA
- Operation Enduring Freedom;
- Operation Iraqi Freedom;
- posttraumatic stress disorder;
- exposure therapy;
- social support;
Despite large-scale dissemination and implementation efforts of evidence-based psychotherapy to veterans from Operation Enduring/Iraqi Freedom (OEF/OIF), little is known regarding the factors that contribute to the successful completion of these treatments in this high-risk population. The present study investigated predictors of treatment completion during a standardized exposure-based psychotherapy for PTSD.
Ninety-two OEF/OIF combat veterans enrolled in a randomized controlled trial for an eight session exposure-based psychotherapy for PTSD. All participants completed structured clinical interviews and several background and symptom questionnaires. Of the initial 92 participants, 28% of the sample (n = 26) discontinued treatment prior to completion of the trial.
Predictors of discontinuation of treatment were assessed with a hierarchical logistic regression. Disability status was positively associated with treatment discontinuation, and postdeployment social support was negatively associated with discontinuation. In contrast to previous findings, other factors, such as age and PTSD symptomatology, were not identified as significant predictors.
The present study suggested that disability status at the start of treatment increases the risk for treatment discontinuation whereas increased social support buffers against discontinuation. Together, these findings highlight the importance of increased assessment and early intervention when these factors are present to potentially reduce treatment discontinuation and improve treatment outcomes in OEF/OIF veterans with PTSD.