Type

Journal Article

Authors

Ask Elklit
Mark Shevlin
Cherie Armour
Philip Hyland
Maj Hansen

Subjects

Psychiatry

Topics
international classification post traumatic stress disorder mental disorders posttraumatic stress disorder diagnostic and statistical manual trauma validity confirmatory factor analysis factor structure

Less is more? Assessing the validity of the ICD-11 model of PTSD across multiple trauma samples (2015)

Abstract Background: In the 5th edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5), the symptom profile of posttraumatic stress disorder (PTSD) was expanded to include 20 symptoms. An alternative model of PTSD is outlined in the proposed 11th edition of the International Classification of Diseases (ICD-11) that includes just six symptoms. Objectives and method: The objectives of the current study are: 1) to independently investigate the fit of the ICD-11 model of PTSD, and three DSM-5-based models of PTSD, across seven different trauma samples (N = 3,746) using confirmatory factor analysis; 2) to assess the concurrent validity of the ICD-11 model of PTSD; and 3) to determine if there are significant differences in diagnostic rates between the ICD-11 guidelines and the DSM-5 criteria. Results: The ICD-11 model of PTSD was found to provide excellent model fit in six of the seven trauma samples, and tests of factorial invariance showed that the model performs equally well for males and females. DSM-5 models provided poor fit of the data. Concurrent validity was established as the ICD-11 PTSD factors were all moderately to strongly correlated with scores of depression, anxiety, dissociation, and aggression. Levels of association were similar for ICD-11 and DSM-5 suggesting that explanatory power is not affected due to the limited number of items included in the ICD-11 model. Diagnostic rates were significantly lower according to ICD-11 guidelines compared to the DSM-5 criteria. Conclusions: The proposed factor structure of the ICD-11 model of PTSD appears valid across multiple trauma types, possesses good concurrent validity, and is more stringent in terms of diagnosis compared to the DSM-5 criteria.
Collections Ireland -> Maynooth University -> Academic Unit = Faculty of Science and Engineering: Psychology
Ireland -> Maynooth University -> Type = Article
Ireland -> National College of Ireland -> Type = Article
Ireland -> Maynooth University -> Academic Unit = Faculty of Science and Engineering
Ireland -> National College of Ireland -> Subject = B Philosophy. Psychology. Religion: Psychology: Stress (Psychology): Post-traumatic stress disorder
Ireland -> Maynooth University -> Status = Published
Ireland -> Maynooth University -> Open Access DRIVERset
Ireland -> National College of Ireland -> Status = Published

Full list of authors on original publication

Ask Elklit, Mark Shevlin, Cherie Armour, Philip Hyland, Maj Hansen

Experts in our system

1
Ask Elklit
National College of Ireland
Total Publications: 46
 
2
Mark Shevlin
National College of Ireland
Total Publications: 125
 
3
Cherie Armour
National College of Ireland
Total Publications: 16
 
4
Philip Hyland
National College of Ireland
Total Publications: 231
 
5
Maj Hansen
National College of Ireland
Total Publications: 21