The International Trauma Questionnaire: development of a self‐report measure of ICD‐11 PTSD and complex PTSD
Marylene Cloitre,Marylene Cloitre,Mark Shevlin,Chris R. Brewin,Jonathan Ian Bisson,Neil P. Roberts,Neil P. Roberts,Andreas Maercker,Thanos Karatzias,Thanos Karatzias,Philip Hyland,Philip Hyland +11 more
TLDR
The purpose of this study was to finalize the development of the International Trauma Questionnaire (ITQ), a self‐report diagnostic measure of post‐traumatic stress disorder (PTSD) and complex PTSD (CPTSD), as defined in the 11th version of theInternational Classification of Diseases (ICD‐11).Abstract:
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Abstract
Objective
The purpose of this study was to finalize the development of the International Trauma Questionnaire (ITQ), a self‐report diagnostic measure of post‐traumatic stress disorder (PTSD) and complex PTSD (CPTSD), as defined in the 11th version of the International Classification of Diseases (ICD‐11).
Method
The optimal symptom indicators of PTSD and CPTSD were identified by applying item response theory (IRT) analysis to data from a trauma‐exposed community sample (n = 1051) and a trauma‐exposed clinical sample (n = 247) from the United Kingdom. The validity of the optimized 12‐item ITQ was assessed with confirmatory factor analyses. Diagnostic rates were estimated and compared to previous validation studies.
Results
The latent structure of the 12‐item, optimized ITQ was consistent with prior findings, and diagnostic rates of PTSD and CPTSD were in line with previous estimates.
Conclusion
The ITQ is a brief, simply worded measure of the core features of PTSD and CPTSD. It is consistent with the organizing principles of the ICD‐11 to maximize clinical utility and international applicability through a focus on a limited but central set of symptoms. The measure is freely available and can be found in the body of this paper.read more
Citations
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Anxiety, depression, traumatic stress and COVID-19-related anxiety in the UK general population during the COVID-19 pandemic
Mark Shevlin,Orla McBride,Jamie Murphy,Jilly Gibson Miller,Todd K. Hartman,Liat Levita,Liam Mason,Anton P. Martinez,Ryan McKay,Thomas V. A. Stocks,Kate M. Bennett,Philip Hyland,Thanos Karatzias,Richard P. Bentall +13 more
TL;DR: This study showed a modest increase in the prevalence of mental health problems in the early stages of the pandemic, and these problems were predicted by several specific COVID-related variables.
Journal ArticleDOI
Posttraumatic stress disorder (PTSD) and complex PTSD (CPTSD) as per ICD-11 proposals: A population study in Israel.
Menachem Ben-Ezra,Thanos Karatzias,Thanos Karatzias,Philip Hyland,Chris R. Brewin,Marylene Cloitre,Marylene Cloitre,Jonathan Ian Bisson,Neil P. Roberts,Brigitte Lueger-Schuster,Mark Shevlin +10 more
TL;DR: The current study sought to advance the existing literature by providing the first assessment of the factorial and discriminant validity of the ICD‐11 proposals for posttraumatic stress disorder and complex PTSD in a nationwide level.
Journal ArticleDOI
ICD-11 Posttraumatic Stress Disorder and Complex Posttraumatic Stress Disorder in the United States: A Population-Based Study.
Marylene Cloitre,Marylene Cloitre,Philip Hyland,Philip Hyland,Jonathan Ian Bisson,Chris R. Brewin,Neil P. Roberts,Neil P. Roberts,Thanos Karatzias,Thanos Karatzias,Mark Shevlin +10 more
TL;DR: Individuals with CPTSD reported substantially higher psychiatric burden and lower levels of psychological well-being compared to those with PTSD and those with neither diagnosis.
Journal ArticleDOI
Risk factors and comorbidity of ICD‐11 PTSD and complex PTSD: Findings from a trauma‐exposed population based sample of adults in the United Kingdom
Thanos Karatzias,Thanos Karatzias,Philip Hyland,Philip Hyland,Aoife Bradley,Marylene Cloitre,Marylene Cloitre,Neil P. Roberts,Neil P. Roberts,Jonathan Ian Bisson,Mark Shevlin +10 more
TL;DR: Following the recently published 11th version of the WHO International Classification of Diseases (ICD‐11), this work sought to examine the risk factors and comorbidities associated with posttraumatic stress disorder and complex PTSD.
Journal ArticleDOI
Evidence of the dissociative PTSD subtype: A systematic literature review of latent class and profile analytic studies of PTSD.
TL;DR: The aims of the present study were to systematically review the LCA and LPA studies investigating support for the D-PTSD construct; and to review the associated research on the risk factors or covariates of D- PTSD in the identified studies.
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