4.6 Article

The impact of social support, unit cohesion, and trait resilience on PTSD in treatment-seeking military personnel with PTSD: The role of posttraumatic cognitions

Journal

JOURNAL OF PSYCHIATRIC RESEARCH
Volume 86, Issue -, Pages 18-25

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jpsychires.2016.11.005

Keywords

Social support; Unit cohesion; Resilience; PTSD; Posttraumatic cognitions; Military personnel

Categories

Funding

  1. Psychological Health and Traumatic Brain Injury Research Program [W81XWH-08-02-109, W81XWH-08-02-0111, W81XWH-08-02-0114]
  2. U.S. Department of Defense through the U.S. Army Medical Research and Materiel Command
  3. Congressionally Directed Medical Research Programs

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Background: The personal resources of social support, unit cohesion, and trait resilience have been found to be associated with posttraumatic stress disorder (PTSD) severity among military personnel. However, the underlying mechanisms of these relationships are unclear. We hypothesized that negative post traumatic cognitions, which are associated with PTSD, mediate the relationships between these personal resources and PTSD. Methods: The relationship between PTSD symptom severity and a latent factor comprised of social support, unit cohesion, and trait resilience was evaluated using cross-sectional data from 366 treatment seeking active duty military personnel with PTSD following deployments to or near Iraq or Afghanistan. Structural equation modeling (SEM) was used to test whether posttraumatic cognitions mediated this relationship. Results: The SEM model indicated that (1) a robust latent variable named personal resources (indicated by social support, unit cohesion, and trait resilience) was negatively associated with PTSD severity; (2) personal resources were negatively associated with negative posttraumatic cognitions; (3) negative posttraumatic cognitions fully mediated the association between personal resources and PTSD severity. The final SEM mediation model showed a highly satisfactory fit [chi(2) (22) = 16.344, p = 0.798; chi(2)/df = 0.743; CFI = 1; RMSEA = 0.000]. Conclusions: These findings suggest that among active duty military personnel seeking treatment for PTSD, personal resources (social support, unit cohesion, and trait resilience) may mitigate PTSD severity by reducing negative posttraumatic cognitions. (C) 2016 Elsevier Ltd. All rights reserved.

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