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DSM-5 PTSD's symptom dimensions and relations with major depression's symptom dimensions in a primary care sample

Contractor, Ateka A., Durham, Tory A., Brennan, Julie A., Armour, Cherie, Wutrick, Hanna R., Christopher Frueh, B. and Elhai, Jon D. (2014) DSM-5 PTSD's symptom dimensions and relations with major depression's symptom dimensions in a primary care sample. Psychiatry Research, 215 (1). pp. 146-153. [Journal article]

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URL: http://dx.doi.org/10.1016/j.psychres.2013.10.015

DOI: doi:10.1016/j.psychres.2013.10.015

Abstract

Existing literature indicates significant comorbidity between posttraumatic stress disorder (PTSD) and major depression. We examined whether PTSD's dysphoria and mood/cognitions factors, conceptualized by the empirically supported four-factor DSM-5 PTSD models, account for PTSD's inherent relationship with depression. We hypothesized that depression's somatic and non-somatic factors would be more related to PTSD's dysphoria and mood/cognitions factors than other PTSD model factors. Further, we hypothesized that PTSD's arousal would significantly mediate relations between PTSD's dysphoria and somatic/non-somatic depression. Using 181 trauma-exposed primary care patients, confirmatory factor analyses (CFA) indicated a well-fitting DSM-5 PTSD dysphoria model, DSM-5 numbing model and two-factor depression model. Both somatic and non-somatic depression factors were more related to PTSD's dysphoria and mood/cognitions factors than to re-experiencing and avoidance factors; non-somatic depression was more related to PTSD's dysphoria than PTSD's arousal factor. PTSD's arousal did not mediate the relationship between PTSD's dysphoria and somatic/non-somatic depression. Implications are discussed.

Item Type:Journal article
Keywords:Confirmatory factor analyses; DSM-5; Depression; Mediation; PTSD; Primary care sample; Structural equation modeling
Faculties and Schools:Faculty of Life and Health Sciences
Faculty of Life and Health Sciences > School of Psychology
Research Institutes and Groups:Psychology Research Institute > Population Health Sciences and Mental Health Services
Psychology Research Institute
ID Code:33123
Deposited By: Prof Cherie Armour
Deposited On:16 Feb 2016 16:38
Last Modified:17 Oct 2017 16:21

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