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Resilience and Posttraumatic Stress Disorder Symptoms in National Guard Soldiers Deployed to Iraq : A Prospective Study of Latent Class Trajectories and Their Predictors
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- Polusny, M. A. (author)
- Minneapolis VA Medical Center, Minneapolis Minnesota, USA; Center for Chronic Disease Outcomes Research, Minneapolis VA Health Care System, Minneapolis Minnesota, USA; Department of Psychiatry, University of Minnesota Medical School, Minneapolis Minnesota, USA
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- Erbes, C. R. (author)
- Minneapolis VA Medical Center, Minneapolis Minnesota, USA; Center for Chronic Disease Outcomes Research, Minneapolis VA Health Care System, Minneapolis Minnesota, USA; Department of Psychiatry, University of Minnesota Medical School, Minneapolis Minnesota, USA
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- Kramer, Mark, 1973- (author)
- Minneapolis VA Medical Center, Minneapolis Minnesota, USA; Department of Psychiatry, University of Minnesota Medical School, Minneapolis Minnesota, USA
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- 2017-08
- 2017
- English.
- In: Journal of Traumatic Stress. - : Wiley-Blackwell. - 0894-9867 .- 1573-6598. ; 30:4, s. 351-361
- Journal article (peer-reviewed)
Abstract
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- This study examined the prospective course of posttraumatic stress disorder (PTSD) symptoms in a cohort of National Guard soldiers (N = 522) deployed to combat operations in Iraq. Participants were assessed 4 times: 1 month before deployment, 2-3 months after returning from deployment, 1 year later, and 2 years postdeployment. Growth mixture modeling revealed 3 distinct trajectories: low-stable symptoms, resilient, 76.4%; new-onset symptoms, 14.2%; and chronic distress, 9.4%. Relative to the resilient class, membership in both the new-onset symptoms and chronic distress trajectory classes was predicted by negative emotionality/neuroticism, odds ratios (ORs) = 1.09, 95% CI [1.02, 1.17], and OR = 1.22, 95% CI [1.09,1.35], respectively; and combat exposure, OR = 1.07, 95% CI [1.02, 1.12], and OR = 1.12, 95% CI [1.02, 1.24], respectively. Membership in the new-onset trajectory class was predicted by predeployment military preparedness, OR = 0.95, 95% CI [0.91, 0.98], perceived threat during deployment, OR = 1.07, 95% CI [1.03, 1.10], and stressful life events following deployment, OR = 1.44, 95% CI [1.05, 1.96]. Prior deployment to Iraq or Afghanistan, OR = 3.85, 95% CI [1.72, 8.69], predeployment depression, OR = 1.27, 95% CI [1.20, 1.36], and predeployment concerns about a deployment's impact on civilian/family life, OR = 1.09, 95% CI [1.02, 1.16], distinguished the chronic distress group relative to the resilient group. Identifying predeployment vulnerability and postdeployment contextual factors provides insight for future efforts to bolster resilience, prevent, and treat posttraumatic symptoms.
Subject headings
- SAMHÄLLSVETENSKAP -- Psykologi (hsv//swe)
- SOCIAL SCIENCES -- Psychology (hsv//eng)
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- art (subject category)
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- Polusny, M. A.
- Erbes, C. R.
- Kramer, Mark, 19 ...
- Thuras, P
- DeGarmo, D
- Koffel, E
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- Litz, B
- Arbisi, P. A.
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- SOCIAL SCIENCES
- SOCIAL SCIENCES
- and Psychology
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- Örebro University
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