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Portuguese-language version of the Epworth sleepiness scale: validation for use in Brazil

Open access
Bertolazi, Alessandra Naimaier, Fagondes, Simone Chaves, Hoff, Leonardo Santos, Pedro, Vinícius Dallagasperina, Menna Barreto, Sérgio Saldanha, Johns, Murray W·2009·Jornal Brasileiro de Pneumologia

Abstract

OBJECTIVE: The aim of this study was to develop a Portuguese-language version of the Epworth sleepiness scale (ESS) for use in Brazil. METHODS: The steps involved in creating the ESS in Brazilian Portuguese (ESS-BR) were as follows: translation; back-translation; comparison (by a committee) between the translation and the back-translation; and testing in bilingual individuals. The ESS-BR was applied to a group of patients who were submitted to overnight polysomnography in order to identify obstructive sleep apnea-hypopnea syndrome (OSAHS), insomnia and primary snoring. A control group was composed of subjects with a history of normal sleep habits, without reported snoring. RESULTS: A total of 114 patients and 21 controls were included. The 8-item scores of the ESS-BR had an overall reliability coefficient of 0.83. The study group was composed of 59 patients with OSAHS, 34 patients with primary snoring and 21 patients with insomnia. One-way ANOVA demonstrated significant differences in ESS-BR scores among the four diagnostic groups (p < 0.001). Post-hoc tests between groups showed that the ESS-BR scores of the patients with insomnia did not differ from those of the controls (p > 0.05). The ESS-BR scores were significantly higher for OSAHS patients and for primary snorers than for controls (p < 0.05). In addition, the scores for OSAHS patients were significantly higher than were those for primary snorers (p < 0.05). CONCLUSIONS: The results of the present study demonstrate that the ESS-BR is a valid and reliable instrument for the assessment of daytime sleepiness, equivalent to its original version when applied to individuals who speak Brazilian Portuguese.

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Metadata

Authors
Bertolazi, A. N., Fagondes, S. C., Hoff, L. S., Pedro, V. D., Menna Barreto, S. S., & Johns, M. W.
Venue
Jornal Brasileiro de Pneumologia
Published
2009-09
Volume
35
Issue
9
Pages
877-883
ISSN
1806-3713 (ISSN-L)
OpenAlex
W2038246210
Cited by
630
References
25
FWCI
8.07
Type
journal article
Language
en
Open access
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CoChat. (2026). Citation check: Portuguese-language version of the Epworth sleepiness scale: validation for use in Brazil. https://app.cochat.ai/papers/10.1590/s1806-37132009000900009
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Bertolazi, A. N., Fagondes, S. C., Hoff, L. S., Pedro, V. D., Menna Barreto, S. S., & Johns, M. W. (2009). Portuguese-language version of the Epworth sleepiness scale: validation for use in Brazil. Jornal Brasileiro de Pneumologia. https://doi.org/10.1590/s1806-37132009000900009

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