ICD-11 posttraumatic stress disorder (PTSD) and complex PTSD among organized violence survivors in modern South Korean history of political oppression

Item response model validation of the German ICD-11 International Trauma Questionnaire for PTSD and CPTSD

“…This coincides with other studies on community samples e.g. with the Italian ( Somma, Maffei, Borroni, Gialdi, & Fossati, 2019 ) or the Korean translation ( Choi, Kim, & Lee, 2021 ) and speaks for the validity of the German translation of the ITQ ( Redican et al, 2021 ).…”

A systematic literature review of factor analytic and mixture models of ICD-11 PTSD and CPTSD using the International Trauma Questionnaire

“…This structure, reflective of the ICD-11 description of CPTSD, was supported in diverse clinical samples including a sample of male perpetrators of domestic violence (Gilbar et al, 2018), a treatment-seeking sample of Syrian refugees and treatmentseeking adults in the UK and Lithuania (Kazlauskas et al, 2018). Five studies comprising community samples also identified this model as the best fit to their sample data (Choi et al, 2020;Haselgruber et al, 2020a;Haselgruber et al, 2020b;ITQ REVIEW 12 Owczarek et al, 2020;Somma et al, 2019). The correlated six-factor model was also reported as demonstrating good fit in each of these samples.…”

“…Studies included clinical samples (n=10), community samples (n=21), and one study was based on both samples. Mean age of participants ranged from 14.25 years (Kazlauskas et al, 2020) to 67.08 years (Choi et al, 2020). Gender ratios varied ranging from 1.1% female (Mordeno et al, 2019) to 84.7% female (Sele et al, 2020).…”

Factor structure and symptom classes of ICD-11 complex posttraumatic stress disorder in a South Korean general population sample with adverse childhood experiences

“…This study aimed to test the factorial and discriminant validity of ICD-11 CPTSD within a Korean representative community sample exposed to ACEs, and to examine the risk factors and clinical symptoms associated with CPTSD symptom classes. We hypothesized that the six-factor correlated factor model and the two-factor higher-order model would provide acceptable model fit for the latent structure of the ICD-11 CPTD symptoms measured by the ITQ, as previous studies had shown that these two models yielded good fit (e. g., Ben-Ezra et al, 2018;Choi, Kim, & Lee, 2020;Cloitre et al, 2018;Ho et al, 2019;Karatzias et al, 2016;Owczarek et al, 2020), with six-factor correlated model generally showing better fit in community populations. We also hypothesized that LCA would reveal distinctive classes of CPTSD, PTSD, low-symptom, and an additional class, such as the low PTSD-high DSO class (e.g., Ben-Ezra et al, 2018;Knefel et al, 2015), or the affect dysregulation class (e.g., Liddell et al, 2019;Perkonigg et al, 2016), identified in community sample studies.…”