This work was supported, in part, by the following: A VA Clinical Science Research and Development (CSR&D) Career Development Award-2 (Bonn-Miller), a VA HSR&D SUD-QUERI grant (RRP 10-192; Bonn-Miller), and Health Services Research and Development Service funds provided to the first author. Daniel M. Blonigen was supported by a Career Development Award-2 from The VA Office of Research and Development (Clinical Sciences Research & Development). The expressed views do not necessarily represent those of the Department of Veterans Affairs.
Sleep Quality Among U.S. Military Veterans With PTSD: A Factor Analysis and Structural Model of Symptoms
Article first published online: 6 DEC 2012
Published 2012. This article is a US Government work and is in the public domain in the USA
Journal of Traumatic Stress
Volume 25, Issue 6, pages 665–674, December 2012
How to Cite
Babson, K. A., Blonigen, D. M., Boden, M. T., Drescher, K. D. and Bonn-Miller, M. O. (2012), Sleep Quality Among U.S. Military Veterans With PTSD: A Factor Analysis and Structural Model of Symptoms. J. Traum. Stress, 25: 665–674. doi: 10.1002/jts.21757
- Issue published online: 6 DEC 2012
- Article first published online: 6 DEC 2012
- A VA Clinical Science Research and Development (CSR&D). Grant Number: RRP 10-192
- Health Services Research and Development Service funds
- VA Office of Research and Development
Poor sleep quality among individuals with posttraumatic stress disorder (PTSD) is associated with poorer prognosis and outcomes. The factor structure of the most commonly employed measure of self-reported sleep quality, the Pittsburgh Sleep Quality Index (PSQI), has yet to be evaluated among individuals with PTSD. The current study sought to fill this gap among a sample of 226 U.S. military veterans with PTSD (90% with co-occurring mood disorders, 73.5% with substance use disorders). We evaluated the factor structure of the PSQI by conducting an exploratory factor analysis (EFA) in approximately half of the sample (n = 111). We then conducted a second EFA in the other split half (n = 115). Lastly, we conducted a path analysis to investigate the relations between sleep factors and PTSD symptom severity, after accounting for the relation with depression. Results suggested sleep quality can best be conceptualized, among those with PTSD, as a multidimensional construct consisting of 2 factors, Perceived Sleep Quality and Efficiency/Duration. After accounting for the association between both factors and depression, only the Perceived Sleep Quality factor was associated with PTSD (β = .51). The results provide a recommended structure that improves precision in measuring sleep quality among veterans with PTSD.