Properties of Swedish Posttraumatic Stress Measures after a Disaster
2014 (English)In: Journal of Anxiety Disorders, ISSN 0887-6185, E-ISSN 1873-7897, Vol. 28, no 4, 402-409 p.Article in journal (Refereed) Published
This study evaluated the properties of Swedish versions of self-report measures of posttraumatic stress disorder (PTSD), with emphasis on the Impact of Event Scale–Revised (IES-R). Survey data from adult survivors 1, 3, and 6 years after the 2004 Indian Ocean tsunami (n = 1506) included the IES-R (from which the IES-6 was derived) and the 12-item General Health Questionnaire (GHQ-12). The PTSD Checklist (PCL) was included in one survey. A structured clinical interview was performed after 6 years (n = 142). Factor analyses of the IES-R and PCL indicated that a dysphoric-arousal model provided good fit invariant across assessments. Both measures were accurate in excluding PTSD while all measures provided poorer positive predictive values. The IES-R, but not the IES-6 and GHQ-12, evidenced stability across assessments. In conclusion, the Swedish IES-R and PCL are sound measures of chronic PTSD, and the findings illustrate important temporal aspects of PTSD assessment.
Place, publisher, year, edition, pages
2014. Vol. 28, no 4, 402-409 p.
Posttraumatic Stress Disorder, Longitudinal invariance, Confirmatory Factor Analysis, Sensitivity and Specificity, Mental Health, Stressful Events
Research subject Psychiatry; Clinical Psychology
IdentifiersURN: urn:nbn:se:uu:diva-218915DOI: 10.1016/j.janxdis.2014.02.005ISI: 000337017300009OAI: oai:DiVA.org:uu-218915DiVA: diva2:697958