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Brief measure of posttraumatic stress reactions: impact of Event Scale-6

Thoresen, Siri, Tambs, Kristian, Hussain, Ajmal, Heir, Trond, Johansen, Venke and Bisson, Jonathan Ian 2009. Brief measure of posttraumatic stress reactions: impact of Event Scale-6. Social psychiatry and psychiatric epidemiology 45 (3) , pp. 405-412. 10.1007/s00127-009-0073-x

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Background The Impact of Event Scale-revised (IES-R) is one of the most widely used measures of posttraumatic stress reactions. However, for some purposes, such as large epidemiological studies, there is a need for briefer instruments. The aim of this study was to develop and validate an abbreviated version of the IES-R that could capture the three current symptom clusters of posttraumatic stress disorder (PTSD). Methods Stepwise multiple regression was applied to abbreviate the IES-R in one sample. The abbreviated version was then tested in three separate samples of individuals exposed to different kinds of potentially traumatic events. Agreement with a reference measure of PTSD, the PTSD checklist (PCL), was calculated for the abbreviated and the full-scale versions of IES. Results The abbreviation procedure resulted in a subset of six items (the IES-6), which correlated highly (pooled correlation = 0.95) with the IES-R across samples. Correlations between the IES-6 and IES-R subscales were somewhat lower (r = 0.78–0.94). Both the IES-6 and IES-R were in high agreement with the PCL. Conclusion The IES-6 appears to be a robust brief measure of posttraumatic stress reactions. It may be useful for research in epidemiological studies, and it may also have a role as a screening instrument in clinical practice.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Medicine
MRC Centre for Neuropsychiatric Genetics and Genomics (CNGG)
Subjects: R Medicine > R Medicine (General)
R Medicine > RC Internal medicine > RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry
Uncontrolled Keywords: Stress disorders; Posttraumatic; Instrumentation; Epidemiology; Questionnaires
Publisher: Springer
ISSN: 0933-7954
Last Modified: 04 Jun 2017 03:34

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