Author |
Barbosa Neto, Jair B.
![]() Germain, Anne ![]() Mattos, Patrícia F. ![]() Serafim, Paula M. ![]() Santos, Roberta C.m. ![]() Martini, Larissa Campagna ![]() ![]() Suchecki, Deborah ![]() ![]() Mello, Marcelo Feijó de ![]() ![]() |
Institution | Universidade Federal de São Paulo (UNIFESP) University of Pittsburgh School of Medicine Department of Psychiatry |
Abstract | Objective: 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. |
Keywords |
Sleep
posttraumatic stress disorder tests/interviews, psychometric stress dreams |
Language | English |
Date | 2014-12-01 |
Published in | Revista Brasileira de Psiquiatria. Associação Brasileira de Psiquiatria - ABP, v. 36, n. 4, p. 330-335, 2014. |
ISSN | 1516-4446 (Sherpa/Romeo) |
Publisher | Associação Brasileira de Psiquiatria - ABP |
Extent | 330-335 |
Origin |
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Access rights | Open access ![]() |
Type | Article |
SciELO ID | S1516-44462014000500330 (statistics in SciELO) |
URI | http://repositorio.unifesp.br/handle/11600/8664 |
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