3 juni 2020

European Journal of Psychotraumatology

Misari Oe, Masaya Ito, Yoshitake Takebayashi, Akiko Katayanagi & Masaru Horikoshi


Background: The diagnostic criteria for posttraumatic stress disorder (PTSD) differ between DSM-5 and ICD-11, which may affect the estimation of prevalence.

Objective: To investigate the concordance of ICD-11 and DSM-5, as compared to ICD-10 and DSM-IV, regarding PTSD caseness among Japanese people who had experienced different potentially traumatic events. In addition, we estimated the comorbidity with major depressive disorder and generalized anxiety disorder according to these four diagnostic manuals.

Method: A web-based survey (n = 6,180) was conducted from November 2016 to March 2017. Participants completed the PTSD Checklist for DSM-5, and other standardized measures of PTSD, depression, and anxiety.

Results: The prevalence of PTSD caseness according to ICD-11 was significantly lower as compared to DSM-IV, DSM-5, and ICD-10. Cohen’s kappa between DSM-5 and ICD-11 was 0.79, indicating substantial agreement. Comorbidity with depression was significantly higher in unique DSM-5 cases than in unique ICD-11 cases. Unique DSM-5 PTSD cases were significantly stronger functionally impaired than unique ICD-11 PTSD cases.

Conclusions: Although requiring fewer items, the ICD-11 showed substantial agreement with DSM-5 regarding PTSD caseness. The lower comorbidity rates in unique cases may support the concept of the ICD-11 which intends to reduce comorbidity by identifying the core elements of PTSD.

Received 11 Jan 2019, Accepted 29 Mar 2020, Published online: 19 May 2020

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Het European Journal of Psychotraumatology (EJPT) is een peer-reviewed, interdisciplinair wetenschappelijk tijdschrift dat deel uitmaakt van de European Society for Traumatic Stress Studies (ESTSS).    Het EJPT heeft als doel om wetenschappers, behandelaren en experts te betrekken bij de belangrijkste vraagstukken rond stress en trauma, waaronder individuele gebeurtenissen, herhaalde of chronische trauma's, grootschalige rampen en geweld.