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A Cross-Cultural Comparison of ICD-11 Complex Posttraumatic Stress Disorder Symptom Networks in Austria, the United Kingdom, and Lithuania.

Authors
  • Knefel, Matthias1
  • Lueger-Schuster, Brigitte1
  • Bisson, Jonathan2
  • Karatzias, Thanos3, 4
  • Kazlauskas, Evaldas5
  • Roberts, Neil P2, 6
  • 1 Faculty of Psychology, University of Vienna, Vienna, Austria. , (Austria)
  • 2 School of Medicine, Cardiff University, Cardiff, UK.
  • 3 School of Health & Social Care, Edinburgh Napier University, Edinburgh, UK.
  • 4 Rivers Centre for Traumatic Stress, NHS Lothian, Edinburgh, Edinburgh, UK.
  • 5 Department of Clinical and Organizational Psychology, Vilnius University, Vilnius, Lithuania. , (Lithuania)
  • 6 Cardiff & Vale University Health Board, Cardiff, UK.
Type
Published Article
Journal
Journal of Traumatic Stress
Publisher
Wiley (John Wiley & Sons)
Publication Date
Feb 01, 2020
Volume
33
Issue
1
Pages
41–51
Identifiers
DOI: 10.1002/jts.22361
PMID: 30688371
Source
Medline
Language
English
License
Unknown

Abstract

The 11th revision of the World Health Organization's International Classification of Diseases (ICD-11) includes a new disorder, complex posttraumatic stress disorder (CPTSD). The network approach to psychopathology enables investigation of the structure of disorders at the symptom level, which allows for analysis of direct symptom interactions. The network structure of ICD-11 CPTSD has not yet been studied, and it remains unclear whether similar networks replicate across different samples. We investigated the network models of four different trauma samples that included a total of 879 participants (M age = 47.17 years, SD = 11.92; 59.04% women) drawn from Austria, Lithuania, and Scotland and Wales in the United Kingdom. The International Trauma Questionnaire was used to assess symptoms of ICD-11 CPTSD in all samples. The prevalence of PTSD and CPTSD ranged from 23.7% to 37.3% and from 9.3% to 53.1%, respectively. Regularized partial correlation networks were estimated and the resulting networks compared. Despite several differences in the symptom presentation and cultural background, the networks across the four samples were considerably similar, with high correlations between symptom profiles (ρs = .48-.87), network structures (ρs = .69-.75), and centrality estimates (ρs = .59-.82). These results support the replicability of CPTSD network models across different samples and provide further evidence about the robust structure of CPTSD. The most central symptom in all four sample-specific networks and the overall network was "feelings of worthlessness." Implications of the network approach in research and practice are discussed. © 2019 The Authors. International Society for Traumatic Stress Studies published by Wiley Periodicals, Inc. on behalf of Society for International Society for Traumatic Stress Studies.

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