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A review of current evidence regarding the ICD-11 proposals for diagnosing PTSD and complex PTSD

Research output: Contribution to journalArticle

Chris R. Brewin ; Marylène Cloitre ; Philip Hyland ; Mark Shevlin ; Andreas Maercker ; Richard A. Bryant ; Asma Humayun ; Lynne M. Jones ; Ashraf Kagee ; Cécile Rousseau ; Daya Somasundaram ; Yuriko Suzuki ; Simon Wessely ; Mark van Ommeren ; Geoffrey M. Reed

Original languageEnglish
JournalClinical Psychology Review
Early online date6 Sep 2017
DOIs
StateE-pub ahead of print - 6 Sep 2017

King's Authors

Abstract

The World Health Organization's proposals for posttraumatic stress disorder (PTSD) in the 11th edition of the International Classification of Diseases, scheduled for release in 2018, involve a very brief set of symptoms and a distinction between two sibling disorders, PTSD and Complex PTSD. This review of studies conducted to test the validity and implications of the diagnostic proposals generally supports the proposed 3-factor structure of PTSD symptoms, the 6-factor structure of Complex PTSD symptoms, and the distinction between PTSD and Complex PTSD. Estimates derived from DSM-based items suggest the likely prevalence of ICD-11 PTSD in adults is lower than ICD-10 PTSD and lower than DSM-IV or DSM-5 PTSD, but this may change with the development of items that directly measure the ICD-11 re-experiencing requirement. Preliminary evidence suggests the prevalence of ICD-11 PTSD in community samples of children and adolescents is similar to DSM-IV and DSM-5. ICD-11 PTSD detects some individuals with significant impairment who would not receive a diagnosis under DSM-IV or DSM-5. ICD-11 CPSTD identifies a distinct group who have more often experienced multiple and sustained traumas and have greater functional impairment than those with PTSD.

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