Validation of post-traumatic stress disorder (PTSD) and complex PTSD using the International Trauma Questionnaire.
Acta Psychiatr Scand
; 136(3): 313-322, 2017 09.
Article
in En
| MEDLINE
| ID: mdl-28696531
ABSTRACT
OBJECTIVE:
The 11th version of the International Classification of Diseases (ICD-11) has proposed two related trauma diagnoses Post-traumatic stress disorder (PTSD) and Complex PTSD (CPTSD). Using a newly developed, disorder-specific measure of PTSD and CPTSD called the International Trauma Questionnaire (ITQ) the current study will (i) assess the factorial validity of ICD-11 PTSD and CPTSD; (ii) provide the first test of the discriminant validity of these constructs; and (iii) provide the first comparison of ICD-11, and Diagnostic and Statistical Manual, Fifth Edition (DSM-5), PTSD diagnostic rates using disorder-specific measures.METHOD:
ICD-11 and DSM-5 PTSD-specific measures were completed by a British clinical sample of trauma-exposed patients (N = 171). The structure and validity of ICD-11 PTSD and CPTSD were assessed by means of factor analysis and assessing relationships with criterion variables.RESULTS:
Diagnostic rates under ICD-11 were significantly lower than those under DSM-5. A two-factor second-order model reflecting the distinction between PTSD and CPTSD best represented the data from the ITQ; and the PTSD and CPTSD factors differentially predicted multiple psychological variables.CONCLUSION:
The factorial and discriminant validity of ICD-11 PTSD and CPTSD was supported, and ICD-11 produces fewer diagnostic cases than DSM-5.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Psychiatric Status Rating Scales
/
Stress Disorders, Post-Traumatic
/
International Classification of Diseases
/
Diagnostic and Statistical Manual of Mental Disorders
/
Psychological Trauma
Type of study:
Guideline
/
Prognostic_studies
Limits:
Adolescent
/
Adult
/
Aged
/
Female
/
Humans
/
Male
/
Middle aged
Language:
En
Journal:
Acta Psychiatr Scand
Year:
2017
Type:
Article
Affiliation country:
Ireland