Translation, cross-cultural adaptation and validation of SinoNasal Outcome Test (SNOT): 22 to Brazilian Portuguese

Revista Brasileira de Otorrinolaringologia

Kosugi, Eduardo Macoto¹  Chen, Vitor Guo²  Fonseca, Viviane Maria Guerreiro da³ 

[1] Federal University of São Paulo;PUC-Sorocaba;UNIFESP

关键词: nasal polyps;    natural orifice endoscopic surgery;    quality of life;    questionnaires;    sinusitis.;   

DOI  :  10.1590/S1808-86942011000500021

学科分类：医学（综合）

来源: Associacao Brasileira de Otorrinolaringologia e Cirurgia Cervicofacial

【 摘 要 】

Quality of life questionnaires have been increasingly used in clinical trials to help establish the impact of medical intervention or to assess the outcome of health care services. Among disease-specific outcome measures, SNOT-22 was considered the most suitable tool for assessing chronic rhinosinusitis and patients with nasal polyps. AIMS: To perform translation, cross-cultural adaptation and validation of the SNOT-22 to Brazilian Portuguese. METHODS: Prospective study involving eighty-nine patients with chronic rhinosinusitis or nasal polyps submitted to functional endoscopic sinus surgery, who answered the questionnaire before and after surgery. Furthermore, 113 volunteers without sinonasal disease also answered the questionnaire. Internal consistency, test-retest reliability, measure validity, responsiveness and clinical interpretability were assessed. RESULTS: Mean preoperative, postoperative and no sinonasal disease scores were 62.39, 23.09 and 11.42, respectively (p<0.0001); showing validity and responsiveness. Internal consistency was high (Cronbach's alpha = 0.9276). Reliability was sufficiently good, considering inter-interviewers (r=0.81) and intra-interviewers within a 10 to 14 day-interval (r=0.72). Surgery effect size was 1.55. Minimally important difference was 14 points; and scores up to 10 points were considered normal. CONCLUSION: The Brazilian Portuguese SNOT-22 version is a valid instrument to assess patients with chronic rhinosinusitis and nasal polyps.

【 授权许可】

CC BY