![]() ![]() ![]() have performed CFAs on the ICD-11 three-factor model that showed a good model fit, although neither study analysed alternative factor models. The authors suggested that the alternative two-factor model and diagnostic algorithm be used. Point prevalence rates were slightly higher with the two-factor solution. Confirmatory factor analysis (CFA) showed that the two-factor model had at least an equivalent fit with the original three-factor model, and being a more parsimonious model, is the preferred one. studied the latent factor structure of the ICD-11 PTSD: comparisons were made between the three-factor model, where one out of two symptoms for each factor is required for the diagnosis a two-factor model that combines re-experiencing and avoidance symptoms, where two out of four of these symptoms are required for the diagnosis and finally a one-factor model. Studies with DSM-5 PTSD symptoms indicate a very high correlation between re-experiencing and avoidance symptoms. The proposed ICD-11 criteria imply that there would be three PTSD symptom factors (re-experiencing, avoidance and hyperarousal), although the latent structure of the symptoms has not been thoroughly studied. Moreover, it has been proposed that ICD-11 would include a complex PTSD diagnosis with additional features of affect dysregulation, negative self-concept and interpersonal problems. A difference from the earlier version of ICD-10 is that functional impairment is now also required. ![]() The proposed ICD-11 Beta Draft criteria for posttraumatic stress disorder (PTSD) include exposure to a threatening or horrific event or series of events followed by symptoms from each of the three core elements: re-experiencing of the traumatic event(s) in the present day with emotions of fear or horror avoidance of traumatic reminders sense of a current threat manifested as hypervigilance and/or an exaggerated startle response and having symptoms lasting for several weeks. WHO has pursued clinical utility in the diagnostic criteria for mental disorders, with the intended aim of implementing simplicity and a limited set of symptoms. The International Classification of Diseases is currently under revision for an 11th version by the World Health Organization (WHO). There were some differences in the clinical characteristics of the PTSD cases identified by ICD-11, when compared to ICD-10 and DSM-IV. The proposed ICD-11 criteria are more restrictive compared to the ICD-10 criteria. The findings suggest that the two-factor model of ICD-11 PTSD is preferable to the three-factor model. Compared to ICD-11, ICD-10 identified cases with less severe trauma exposure and posttraumatic symptoms and DSM-IV identified cases with less severe trauma exposure. Diagnostic agreement of the ICD-11 PTSD criteria with ICD-10 and DSM-IV was moderate, yet the diagnostic agreement turned to be good when an impairment criterion was imposed on ICD-10. In the studied samples, the three-factor ICD-11 criteria identified 51 (22.4 %) PTSD cases, the two-factor ICD-11 identified 56 (24.6 %) cases and the DSM-IV identified 43 (18.9 %) cases, while the number of cases identified by ICD-10 was larger, being 85 (37.3 %) cases. ResultsĬonfirmatory factor analyses indicated that the proposed ICD-11 PTSD symptoms represented two rather than three factors re-experiencing and avoidance symptoms comprised one factor and hyperarousal symptoms the other factor. PTSD symptom item scores were used to compose diagnoses according to the different classification systems. Semi-structured diagnostic interviews were performed to assess psychiatric diagnoses and PTSD symptom scores ( N = 228, mean age 17.6 years). ![]() Two samples of adolescents and young adults were followed after exposure to similar mass shooting incidents in their schools. Possible differences in clinical characteristics of the PTSD cases identified by ICD-11, ICD-10 and DSM-IV are explored. The aim of this study was to evaluate the ICD-11 PTSD factor structure in samples of young people, and to compare PTSD prevalence rates and diagnostic agreement between the different diagnostic systems. The proposed posttraumatic stress disorder (PTSD) criteria for the International Classification of Diseases (ICD) 11th revision are simpler than the criteria in ICD-10, DSM-IV or DSM-5. ![]()
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