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PTSD's latent structure in Malaysian tsunami victims: assessing the newly proposed Dysphoric Arousal model.
Psychiatry Res 2013; 206(1):26-32PR

Abstract

The underlying latent structure of Posttraumatic Stress Disorder (PTSD) is widely researched. However, despite a plethora of factor analytic studies, no single model has consistently been shown as superior to alternative models. The two most often supported models are the Emotional Numbing and the Dysphoria models. However, a recently proposed five-factor Dysphoric Arousal model has been gathering support over and above existing models. Data for the current study were gathered from Malaysian Tsunami survivors (N=250). Three competing models (Emotional Numbing/Dysphoria/Dysphoric Arousal) were specified and estimated using Confirmatory Factor Analysis (CFA). The Dysphoria model provided superior fit to the data compared to the Emotional Numbing model. However, using chi-square difference tests, the Dysphoric Arousal model showed a superior fit compared to both the Emotional Numbing and Dysphoria models. In conclusion, the current results suggest that the Dysphoric Arousal model better represents PTSD's latent structure and that items measuring sleeping difficulties, irritability/anger and concentration difficulties form a separate, unique PTSD factor. These results are discussed in relation to the role of Hyperarousal in PTSD's on-going symptom maintenance and in relation to the DSM-5.

Authors+Show Affiliations

The National Centre for Psychotraumatology, University of Southern Denmark, Odense, Denmark. armour.cherie@gmail.comNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

23017656

Citation

Armour, Cherie, et al. "PTSD's Latent Structure in Malaysian Tsunami Victims: Assessing the Newly Proposed Dysphoric Arousal Model." Psychiatry Research, vol. 206, no. 1, 2013, pp. 26-32.
Armour C, Raudzah Ghazali S, Elklit A. PTSD's latent structure in Malaysian tsunami victims: assessing the newly proposed Dysphoric Arousal model. Psychiatry Res. 2013;206(1):26-32.
Armour, C., Raudzah Ghazali, S., & Elklit, A. (2013). PTSD's latent structure in Malaysian tsunami victims: assessing the newly proposed Dysphoric Arousal model. Psychiatry Research, 206(1), pp. 26-32. doi:10.1016/j.psychres.2012.09.012.
Armour C, Raudzah Ghazali S, Elklit A. PTSD's Latent Structure in Malaysian Tsunami Victims: Assessing the Newly Proposed Dysphoric Arousal Model. Psychiatry Res. 2013 Mar 30;206(1):26-32. PubMed PMID: 23017656.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - PTSD's latent structure in Malaysian tsunami victims: assessing the newly proposed Dysphoric Arousal model. AU - Armour,Cherie, AU - Raudzah Ghazali,Siti, AU - Elklit,Ask, Y1 - 2012/09/25/ PY - 2011/12/17/received PY - 2012/08/27/revised PY - 2012/09/06/accepted PY - 2012/9/29/entrez PY - 2012/9/29/pubmed PY - 2013/9/10/medline SP - 26 EP - 32 JF - Psychiatry research JO - Psychiatry Res VL - 206 IS - 1 N2 - The underlying latent structure of Posttraumatic Stress Disorder (PTSD) is widely researched. However, despite a plethora of factor analytic studies, no single model has consistently been shown as superior to alternative models. The two most often supported models are the Emotional Numbing and the Dysphoria models. However, a recently proposed five-factor Dysphoric Arousal model has been gathering support over and above existing models. Data for the current study were gathered from Malaysian Tsunami survivors (N=250). Three competing models (Emotional Numbing/Dysphoria/Dysphoric Arousal) were specified and estimated using Confirmatory Factor Analysis (CFA). The Dysphoria model provided superior fit to the data compared to the Emotional Numbing model. However, using chi-square difference tests, the Dysphoric Arousal model showed a superior fit compared to both the Emotional Numbing and Dysphoria models. In conclusion, the current results suggest that the Dysphoric Arousal model better represents PTSD's latent structure and that items measuring sleeping difficulties, irritability/anger and concentration difficulties form a separate, unique PTSD factor. These results are discussed in relation to the role of Hyperarousal in PTSD's on-going symptom maintenance and in relation to the DSM-5. SN - 1872-7123 UR - https://www.unboundmedicine.com/medline/citation/23017656/PTSD's_latent_structure_in_Malaysian_tsunami_victims:_assessing_the_newly_proposed_Dysphoric_Arousal_model_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0165-1781(12)00508-2 DB - PRIME DP - Unbound Medicine ER -