The Quebec Sleep Questionnaire on quality of life in patients with obstructive sleep apnea: translation into Portuguese and cross-cultural adaptation for use in Brazil

Abstract

Objective: To translate the Quebec Sleep Questionnaire (QSQ), a specific instrument for the assessment of quality of life in patients with sleep obstructive apnea, into Portuguese and to create a version that is cross-culturally adapted for use in Brazil. Methods: The Portuguese-language version was developed according to a rigorous methodology, which included the following steps: preparation; translation from English into Portuguese in three versions; reconciliation to a single version; back-translation of that version into English; comparison and harmonization of the back-translation with the original version; review of the Portuguese-language version; cognitive debriefing; text review; and arrival at the final version. Results: The Portuguese-language version of the QSQ for use in Brazil had a clarity score, as measured by cognitive debriefing, ranging from 0.81 to 0.99, demonstrating the consistency of translation and cross-cultural adaptation processes. Conclusions: The process of translating the QSQ into Portuguese and creating a version that is cross-culturally adapted for use in Brazil produced a valid instrument to assess the quality of life in patients with obstructive sleep apnea.

Effects of combined exercise training with sleep education in older adults with obstructive sleep apnea: protocol for a randomized clinical trial

“…Quality of life will be analyzed using the Quebec Sleep Questionnaire ( Lacasse et al, 2004 ), an instrument specifically designed to assess the quality of life of individuals with OSA. The questionnaire has been translated and adapted for use in Brazil ( de Melo et al, 2017 ) and comprises 32 questions that evaluate the impact of apnea across five distinct domains: daytime sleepiness, daytime symptoms, nighttime symptoms, emotions, and social interactions. Each domain consists of four to 10 items, each scored on a Likert scale ranging from 1 to 7.…”

Síndrome de apnea del sueño en población colombiana con epilepsia empleando la escala de apnea del sueño del cuestionario de trastornos del sueño

“…Los efectos negativos del SAOS incluyen depresión, irritabilidad, reducción de la libido, fatiga y fallas cognitivas, principalmente de atención y memoria, por lo que se considera que interfiere en el funcionamiento diario y en las interacciones sociales (17)(18)(19)(20)(21)(22)(23)(24)(25). La distribución de los efectos previamente mencionados podría tener diferente frecuencia y severidad entre diversas poblaciones étnicas, lo cual es característico en nuestro medio con respecto a lo descrito en la literatura estadounidense.…”