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

Choi, Hyunjung; Lee, Wooyeol

doi:10.1016/j.chiabu.2021.104982

Cited by 20 publications

(14 citation statements)

References 68 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Consistent with prior research, 7,19,21 a clear doseresponse association was evident between cumulative trauma and membership to all trauma classes, and this effect was strongest for the 'CPTSD class'. Consistent with prior studies where sexual trauma was identified as a predominant risk factor for CPTSD, 19,21,72,73 experiences of sexual trauma at lower and higher frequencies of exposure significantly predicted 'CPTSD class' membership. Notably, sexual trauma was also a risk-factor for 'DSO class's membership, 74 although this effect was applicable only at lower quantities of exposure.…”

Section: Discussionsupporting

confidence: 81%

Prevalence and predictors of ICD‐11 posttraumatic stress disorder and complex PTSD in young people

Redican

Cloitre

McBride

et al. 2022

Acta Psychiatr Scand

Self Cite

View full text Add to dashboard Cite

Objective: The prevalence, construct validity, risk factors and psychopathological correlates associated with ICD-11 posttraumatic stress disorder (PTSD) and complex PTSD (CPTSD) as measured by the International Trauma Questionnaire for Children and Adolescents (ITQ-CA) were assessed in a sample of young people from Northern Ireland. Method: Participants were trauma-exposed 11-19-year-olds (N = 507) who participated in the Northern Ireland Youth Wellbeing Prevalence Survey (YWS-NI, 2020). Factor mixture modelling (FMM) was used to test the latent structure of the ITQ-CA. Risk-factors and psychopathological correlates associated with latent class membership, and ICD-11diagnostic status, were also investigated.Results: More participants met the ITQ-CA criteria for CPTSD (3.4%, n = 44) than PTSD (1.5%, n = 19). A second-order FMM comprising a 'partial-PTSD class', a 'CPTSD class', a 'DSO class' and a 'low symptom endorsement class' was the best-fitting model. Younger age and cumulative trauma were risk factors for all trauma classes. Female gender and two or more violent traumas were significant predictors of the 'PTSD' and 'CPTSD' classes, while single sexual trauma was a significant predictor of the 'DSO' and 'CPTSD' classes.Two or more sexual traumas was a unique predictor of 'CPTSD class', while two or more vicarious traumas was a unique predictor of 'DSO class'. The 'CPTSD' class displayed the most notable comorbidity.Conclusions: Findings indicate that CPTSD may be more prevalent than PTSD in children and young people. Support for the ICD-11 conceptualisation of CPTSD as representing a unique diagnostic construct was supported using FMM, with findings indicating trauma symptom class-specific risk profiles.

show abstract

Section: Discussionsupporting

confidence: 81%

Prevalence and predictors of ICD‐11 posttraumatic stress disorder and complex PTSD in young people

Redican

Cloitre

McBride

et al. 2022

Acta Psychiatr Scand

Self Cite

View full text Add to dashboard Cite

show abstract

“…The reliability of the DSO scale was 0.79 for all patients and thus closer to an acceptable level for individual assessment. Previous research has reported varying levels of reliability of the ITQ subscales for clinical and population-based samples; for instance, Choi et al ( 2021 ) reported the reliability of the PTSD and DSO subscales as 0.92 and 0.91, respectively, for the Korean ITQ with a general population sample, while in the Danish context, Vang et al ( 2021 ) reported reliabilities ranging from 0.73 to 0.91 (PTSD) and from 0.77 to 0.86 (DSO) for diverse clinical samples. The lower and varied reliabilities in our study can mainly be attributed to our taking into account the LD between items in each scale, as this is known to result in lowered reliability because LD that is not dealt with in some manner will falsely inflate reliability (Marais, 2012 ).…”

Section: Discussionmentioning

confidence: 99%

Cross-cultural validity and psychometric properties of the International Trauma Questionnaire in a clinical refugee sample

Nielsen

Elklit

Vang

et al. 2023

European Journal of Psychotraumatology

View full text Add to dashboard Cite

Background: The ICD-11 post-traumatic stress disorder (PTSD) and complex PTSD diagnoses have been examined in several studies using the International Trauma Questionnaire (ITQ). The cross-cultural validity of the ITQ has not previously been studied using item responses theory methods focused on the issue of equal item functioning and thus comparability of scores across language groups. Objective: To investigate the cross-cultural validity of the ITQ scales considering specifically local independence of items and differential item functioning (DIF) in a cross-cultural sample of refugees. Method: Data from 490 treatment-seeking refugees were included, covering Danish, Arabic, and Bosnian languages and different levels of interpreter-assisted administration. Rasch and graphical log-linear Rasch models were used. Results: There was strong local dependence among items from the same symptom clusters in the PTSD and disorders in self-organization (DSO) scales, except between affective dysregulation items. Weak local dependence was discovered between an item from the affective dysregulation cluster and an item from the disturbed relationship cluster. There was no evidence of DIF related to language or interpreter assistance. There was evidence of DIF for two PTSD items relative to gender and time since the traumatic event. The targeting of the scales to the study population was not optimal. Reliability varied from 0.55 to 0.78 for subgroups. Conclusions: The PTSD and the DSO scales have stable psychometric properties across the Danish, Arabic, and Bosnian language versions and different levels of assisted administration. Scores are comparable across these groups. However, DIF relative to gender and time since trauma introduces considerable measurement bias. DIF-adjusted summed scale scores or estimated person parameters should be used to avoid measurement bias. Future research should investigate whether scales including more and/or alternative items that require higher levels of PTSD and DSO to be endorsed will improve targeting and measurement precision for refugee populations.

show abstract

“…The correlated six-factor first-order model was identified as the best fitting model in five community studies (Choi et al, 2021;Ho et al, 2020;Kazlauskas et al, 2020;Mordeno et al, 2019). This model was favoured in an overall sample of young adults from East Asia (Ho et al, 2020), a sample of Chinese young adults of which almost three quarters reported at least one ACE , in a sample of combat exposed soldiers from the Philippines (Mordeno et al, 2019), in a sample of South Korean adults (Choi et al, 2021) and in a sample of children and adolescents using the ITQ-CA (Kazluaskas et al, 2020). Notably, the two-factor second-order model was also a good fit to the data in all of these community studies.…”

Section: Factor Structure Reviewmentioning

confidence: 99%

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

Redican

Nolan

Hyland

et al. 2021

Journal of Anxiety Disorders

Self Cite

View full text Add to dashboard Cite

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

Cited by 20 publications

References 68 publications

Prevalence and predictors of ICD‐11 posttraumatic stress disorder and complex PTSD in young people

Prevalence and predictors of ICD‐11 posttraumatic stress disorder and complex PTSD in young people

Cross-cultural validity and psychometric properties of the International Trauma Questionnaire in a clinical refugee sample

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

Contact Info

Product

Resources

About