@article{ref1,
title="Validation of the Danish International Trauma Questionnaire for posttraumatic stress disorder in chronic pain patients using clinician-rated diagnostic interviews",
journal="European journal of psychotraumatology",
year="2021",
author="Hansen, Maj and Vægter, Henrik Bjarke and Cloitre, Marylene and Andersen, Tonny Elmose",
volume="12",
number="1",
pages="1880747-1880747",
abstract="BACKGROUND: The estimated prevalence rate of comorbid posttraumatic stress disorder (PTSD) is high in trauma-exposed chronic pain patients. At the same time, self-report measures of PTSD tend to be over-inclusive within this specific population due to the high symptom overlap resulting in potential false positives. There is a need for an updated PTSD screening tools with a proper validation against clinical interviews according to the recently published 11(th) revision of the World Health Organization's International Classification of Diseases (ICD-11). <br><br>OBJECTIVE: The present study aimed to validate the Danish International Trauma Questionnaire (ITQ) PTSD part in a sample of trauma-exposed chronic pain patients. <br><br>METHOD: The ITQ was validated using a clinician-rated diagnostic interview of ICD-11 PTSD among chronic pain patients exposed to accident or work-related trauma (N = 40). Construct validity, concurrent and discriminant validity was investigated using confirmatory factor analyses (CFA) and correlation analysis, respectively. Three CFA models of ITQ PTSD part were tested in a sample of trauma-exposed chronic pain patients (N = 1,017) and a subsample of chronic pain patients exposed to accident or work-related trauma only (n = 367). <br><br>RESULTS: Diagnostic consistency between the six ICD-11 PTSD symptoms derived from the ITQ and the clinical interview (κ = .59) and the overall accuracy of the scale (AUC = .90) were good. The Danish ITQ showed excellent construct, concurrent and discriminant validity. The ICD-11 three factor PTSD model had excellent fit in both the full sample and the subsample of traffic and work-related accidents. <br><br>CONCLUSIONS: The results indicate that the ITQ also has good psychometric properties in patients with chronic pain.<p /> <p>Language: en</p>",
language="en",
issn="2000-8198",
doi="10.1080/20008198.2021.1880747",
url="http://dx.doi.org/10.1080/20008198.2021.1880747"
}