Validation of the International Trauma Questionnaire – Child and Adolescent Version (ITQ-CA) in a Chinese mental health service seeking adolescent sample

Grace W.K. Ho Ho, H Liu, T Karatzias, Philip Hyland, Marylène Cloitre, Brigitte Lueger-Schuster, Chris R Brewin, Chenchen Guo Guo, X Wang, M Shevlin

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Background: The International Trauma Questionnaire—Child and Adolescent version (ITQ-CA) is a self-report measure that assesses posttraumatic stress disorder (PTSD) and complex PTSD (CPTSD) based on the diagnostic formulation of the 11th version of the International Classification of Diseases (ICD-11). This study aimed to provide a Chinese translation and psychometric evaluation of the ITQ-CA using a sample of mental-health service seeking adolescents in Mainland China.

: The ITQ-CA was translated and back-translated from English to simplified Chinese and finalized with consensus from an expert panel. Adolescents ages 12–17 were recruited via convenience sampling from an outpatient psychiatric clinic in Mainland China. Participants completed the ITQ-CA; measures of four criterion variables (depression, anxiety, stress, adverse childhood experiences); and the PTSD Checklist for DSM-5 (PCL-5). Construct validity, concurrent validity, and comparison of PTSD caseness between ICD-11 and DSM-5 measures were assessed.

Results: The final sample consisted of 111 Chinese adolescents (78% female; mean age of 15.23), all diagnosed with a major depressive disorder. Confirmatory factor analysis indicated the two-factor second-order model provided optimal fit. All criterion variables were positively and significant correlated with the six ITQ-CA symptom cluster summed scores. In the present sample, 69 participants (62.16%) met symptom criteria for ICD-PTSD or CPTSD using the ITQ-CA, and 73 participants (65.77%) met caseness for DSM-5 PTSD using the PCL-5. Rates of PTSD symptom cluster endorsement and caseness deriving from both diagnostic systems were comparable.

Conclusions: The Chinese ITQ-CA has acceptable psychometric properties and confers additional benefits in identifying complex presentations of trauma-related responses in younger people seeking mental health services.
Original languageEnglish
Article number66
Number of pages8
JournalChild and Adolescent Psychiatry and Mental Health
Issue number1
Early online date12 Aug 2022
Publication statusPublished online - 12 Aug 2022

Bibliographical note

Funding Information:
None to report.

Publisher Copyright:
© 2022, The Author(s).


  • ICD‑11 PTSD
  • ICD‑11 Complex PTSD
  • DSM‑5 PTSD
  • Chinese adolescents
  • ITQ‑CA
  • DSM-5 PTSD
  • ITQ-CA
  • ICD-11 Complex PTSD
  • ICD-11 PTSD


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