Predictive validity of the Trauma Screening Questionnaire in detecting post-traumatic stress disorder in patients with psychotic disorders

Post-traumatic stress disorder (PTSD) is highly prevalent in patients with a psychotic disorder. Because a PTSD diagnosis is often missed in patients with psychosis in routine care, a valid screening instrument could be helpful. To determine the validity of the Trauma Screening Questionnaire (TSQ) a...

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Bibliographic Details
Published in:British journal of psychiatry 2015-05, Vol.206 (5), p.408-416
Main Authors: de Bont, Paul A. J. M., van den Berg, David P. G., van der Vleugel, Berber M., de Roos, Carlijn, de Jongh, Ad, van der Gaag, Mark, van Minnen, Agnes
Format: Article
Language:English
Subjects:
Adolescent
Adult
Aged
Clinical assessment
Clinical medicine
Emotional disorders
Female
Humans
Interviews
Male
Mass Screening
Medical diagnosis
Medical screening
Mental health care
Middle Aged
Mood disorders
Patients
Post traumatic stress disorder
Predictive validity
Predictive Value of Tests
Psychiatric Status Rating Scales
Psychiatry
Psychosis
Psychotic Disorders - epidemiology
Quantitative psychology
Questionnaires
Sensitivity and Specificity
Stress Disorders, Post-Traumatic - diagnosis
Stress Disorders, Post-Traumatic - epidemiology
Surveys and Questionnaires
Trauma
Validity
Victims of crime
Young Adult
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Summary:Post-traumatic stress disorder (PTSD) is highly prevalent in patients with a psychotic disorder. Because a PTSD diagnosis is often missed in patients with psychosis in routine care, a valid screening instrument could be helpful. To determine the validity of the Trauma Screening Questionnaire (TSQ) as a screening tool for PTSD among individuals with psychotic disorders. Among 2608 patients with a psychotic disorder, the rate of trauma exposure was determined and the TSQ was administered to screen for PTSD. PTSD status was verified in 455 patients using the Clinician-Administered PTSD Scale (trial registration: ISRCTN 79584912). Trauma exposure was reported by 78.2% of the 2608 patients. PTSD prevalence was estimated at 16% (95% CI 14.6-17.4%) compared with 0.5% reported in the patients' clinical charts. A TSQ cut-off score of six predicted PTSD with 78.8% sensitivity, 75.6% specificity, 44.5% correct positives and 93.6% correct negatives. The TSQ seems to be a valid screening tool for PTSD in patients with a psychotic disorder.
ISSN:0007-1250
1472-1465
DOI:10.1192/bjp.bp.114.148486