Psychometric properties of the Brazilian version of the Pittsburgh Sleep Quality Index Addendum for PTSD (PSQI-A)

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dc.contributor.authorBarbosa Neto, Jair B.
dc.contributor.authorGermain, Anne
dc.contributor.authorMattos, Patrícia F.
dc.contributor.authorSerafim, Paula M.
dc.contributor.authorSantos, Roberta C.m.
dc.contributor.authorMartini, Larissa Campagna [UNIFESP]
dc.contributor.authorSuchecki, Deborah [UNIFESP]
dc.contributor.authorMello, Marcelo Feijó de [UNIFESP]
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.contributor.institutionUniversity of Pittsburgh School of Medicine Department of Psychiatry
dc.date.accessioned2015-06-14T13:47:22Z
dc.date.available2015-06-14T13:47:22Z
dc.date.issued2014-12-01
dc.description.abstractObjective: Sleep disturbances play a fundamental role in the pathophysiology posttraumatic stress disorder (PTSD), and are not only a secondary feature. The aim of this study was to validate and assess the psychometric properties of the Brazilian version of the Pittsburgh Sleep Quality Index Addendum for PTSD (PSQI-A-BR), a self-report instrument designed to assess the frequency of seven disruptive nocturnal behaviors, in a sample of participants with and without PTSD. Methods: PSQI-A was translated into Brazilian Portuguese and applied to a convenience sample of 190 volunteers, with and without PTSD, who had sought treatment for the consequences of a traumatic event. Results: The PSQI-A-BR displayed satisfactory internal consistency (Cronbach's coefficient of 0.83 between all items) and convergent validity with the Clinician Administered PTSD Scale (CAPS), even when excluding sleep-related items (r = 0.52). Test-retest yielded high agreement in the global PSQI-A-BR, with good stability over time (r = 0.88). A global PSQI-A-BR cutoff score of 7 yielded a sensitivity of 79%, specificity of 64%, and a global score of 7 yielded a positive predictive value of 93% for discriminating participants with PTSD from those without PTSD. Conclusion: The PSQI-A-BR is a valid instrument for PTSD assessment, applicable to both clinical and research settings.en
dc.description.affiliationUniversidade Federal de São Paulo (UNIFESP) Department of Psychiatry
dc.description.affiliationUniversity of Pittsburgh School of Medicine Department of Psychiatry
dc.description.affiliationUniversidade Federal de São Paulo (UNIFESP) Department of Psychobiology
dc.description.affiliationUnifespUNIFESP, Department of Psychiatry
dc.description.affiliationUnifespUNIFESP, Department of Psychobiology
dc.description.sourceSciELO
dc.format.extent330-335
dc.identifierhttp://dx.doi.org/10.1590/1516-4446-2013-1225
dc.identifier.citationRevista Brasileira de Psiquiatria. Associação Brasileira de Psiquiatria - ABP, v. 36, n. 4, p. 330-335, 2014.
dc.identifier.doi10.1590/1516-4446-2013-1225
dc.identifier.fileS1516-44462014000500330.pdf
dc.identifier.issn1516-4446
dc.identifier.scieloS1516-44462014000500330
dc.identifier.urihttp://repositorio.unifesp.br/handle/11600/8664
dc.language.isoeng
dc.publisherAssociação Brasileira de Psiquiatria - ABP
dc.relation.ispartofRevista Brasileira de Psiquiatria
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectSleepen
dc.subjectposttraumatic stress disorderen
dc.subjecttests/interviews, psychometricen
dc.subjectstressen
dc.subjectdreamsen
dc.titlePsychometric properties of the Brazilian version of the Pittsburgh Sleep Quality Index Addendum for PTSD (PSQI-A)en
dc.typeinfo:eu-repo/semantics/article
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