The final sections of this review consider: (a) partial/subsyndromal PTSD (b) disorders of extreme stress not otherwise specified (DESNOS)/complex PTSD (c) cross- cultural factors (d) developmental factors and (e) subtypes of PTSD. A new set of diagnostic criteria is proposed for DSM-5 that: (a) attempts to sharpen the A1 criterion (b) eliminates the A2 criterion (c) proposes four rather than three symptom clusters and (d) expands the scope of the B-E criteria beyond a fear-based context. It has also been shown that in addition to the fear-based symptoms emphasized in DSM-IV, traumatic exposure is also followed by dysphoric, anhedonic symptoms, aggressive/externalizing symptoms, guilt/shame symptoms, dissociative symptoms, and negative appraisals about oneself and the world. Confirmatory factor analyses suggest that the latent structure of PTSD appears to consist of four distinct symptom clusters rather than the three-cluster structure found in DSM-IV. The B (reexperiencing), C (avoidance/numbing) and D (hyperarousal) criteria are also reviewed. ![]() Empirical literature regarding the utility of the A2 criterion indicates that there is little support for keeping the A2 criterion in DSM-5. The self-report rating scale is 0-4 for each symptom, reflecting a change from 1-5 in the DSM-IV version. The wording of PCL-5 items reflects both changes to existing symptoms and the addition of new symptoms in DSM-5. With regard to A1, the review considers: (a) whether A1 is etiologically or temporally related to the PTSD symptoms (b) whether it is possible to distinguish "traumatic" from "non-traumatic" stressors and (c) whether A1 should be eliminated from DSM-5. The PCL-5 is a 20-item questionnaire, corresponding to the DSM-5 symptom criteria for PTSD. Most of this work has focused on Criteria A1 and A2, the two components of the A (Stressor) Criterion. This is a review of the relevant empirical literature concerning the DSM-IV-TR diagnostic criteria for PTSD.
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