The accuracy of the Clinician-Administered PTSD Scale (CAPS) to identify PTSD cases in victims of urban violence

The accuracy of the Clinician-Administered PTSD Scale (CAPS) to identify PTSD cases in victims of urban violence

Author Pupo, Mariana Cadrobbi Autor UNIFESP Google Scholar
Jorge, Miguel Roberto Google Scholar
Schoedl, Aline Ferri Google Scholar
Bressan, Rodrigo Affonseca Google Scholar
Andreoli, Sergio Baxter Google Scholar
Mello, Marcelo Feijo Google Scholar
Mari, Jair de Jesus Google Scholar
Institution Universidade Federal de São Paulo (UNIFESP)
Abstract As a consequence of the increasing urban violence in Brazil, many cases of posttraumatic stress disorder (PTSD) are now seen in the community and clinical settings. the main aim of this article is to assess the psychometric properties of the Clinician-Administered PTSD Scale (CAPS) to study factors related to the etiology, prognosis, and efficacy of interventions of PTSD in civilian populations. PTSID outpatients from a program of victims of violence and subjects identified in an epidemiological survey conducted in the city of São Paulo completed a battery of validated instruments and the CAPS. Instrument reliability and validity were measured. the comparison between the CAPS scores and the Structured Clinical Interview for DSM IV (SCID) interview resulted in the following validity coefficients: sensitivity = 90%, specificity = 95%, and misclassification rate = 7.1%. the area under the receiver operating characteristic (ROC) curve was 0.97. There was a positive correlation between CAPS scores with Beck Depression Inventory (BDI; 0.70) and Beck Anxiety Inventory (BAI; 0.76) scores. the Kappa coefficients were all higher than 0.63 for all CAPS items. the internal consistency for all CAPS items resulted in a Cronbach's alpha coefficient of 0.97. the CAPS showed to be both an accurate and a reliable research instrument to identify PTSD cases in a civilian population. (C) 2009 Elsevier Ireland Ltd. All rights reserved.
Keywords CAPS
PTSD
Reliability
Validity
Kappa coefficient
Psychometric properties
Language English
Sponsor Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Grant number FAPESP: 2004/15039-0
CNPq: 420122/2005-2
CAPES: 27909024886
Date 2011-01-30
Published in Psychiatry Research. Clare: Elsevier B.V., v. 185, n. 1-2, p. 157-160, 2011.
ISSN 0165-1781 (Sherpa/Romeo, impact factor)
Publisher Elsevier B.V.
Extent 157-160
Origin http://dx.doi.org/10.1016/j.psychres.2009.11.006
Access rights Closed access
Type Article
Web of Science ID WOS:000287113000027
URI http://repositorio.unifesp.br/handle/11600/33364

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