French adaptation and validation of the Sino‐Nasal Outcome Test‐22: a prospective cohort study on quality of life among 422 subjects. (February 2015)

• Record Type: Journal Article
• Authors: de Dorlodot, C.; Horoi, M.; Lefebvre, P.; Collet, S.; Bertrand, B.; Eloy, P.; Poirrier, A.‐L.
• Is Part Of: Clinical otolaryngology. Volume 40:Number 1(2015:Feb.)
• Page Start: 29
• Page End: 35
• Publication Date: 2015-02
• Subjects: Otolaryngology -- Periodicals; 617.51005
• DOI: 10.1111/coa.12315
• Languages: English
• ISSNs: 1749-4478

Abstract

<abstract abstract-type="main" id="coa12315-abs-0001"> <title> <x xml:space="preserve">Abstract</x> </title> <sec id="coa12315-sec-0001" sec-type="section"> <title>Objectives</title> <p>ENT surgeons are facing an ever‐increasing demand to demonstrate their efficacy. The 22‐item Sino‐Nasal Outcome Test (SNOT‐22) is a fully validated and easy‐to‐use outcome measure in rhinology. Our goal was to translate and validate the SNOT‐22 in a cohort of 422 French‐speaking subjects.</p> </sec> <sec id="coa12315-sec-0002" sec-type="section"> <title>Design, Setting and Participants</title> <p>The French version of the SNOT‐22 was obtained by forward and backward translations by six independent interpreters. Five experienced rhinologists compared the translations to each other, and a group of 12 naive patients selected the most appropriate translation of each item. To evaluate this questionnaire, we conducted a prospective cohort study on 376 rhinological patients and 46 healthy volunteers in three University‐affiliated teaching Hospitals.</p> </sec> <sec id="coa12315-sec-0003" sec-type="section"> <title>Main outcome measures</title> <p>Reproducibility (test–retest reliability), internal consistency, known‐group differences, responsiveness to treatment, validity and correlation to other clinical instruments (visual analogue scale, Nasal Obstruction Symptoms Evaluation score and Lund–Mackay score).</p> </sec> <sec id="coa12315-sec-0004" sec-type="section"> <title>Results</title> <p>The test–retest reliability coefficient was 0.78, indicating a good reliability when administering the instrument on two different occasions. The internal consistency was high with a Cronbach's <italic>α</italic> value of 0.93. Our questionnaire was able to detect differences between rhinological patients and control subjects (<italic>P</italic> < 0.0001) and improved significantly after nose and sinus surgery (<italic>P</italic> < 0.0001), indicating a good responsiveness. There was a relative correlation with visual analogue scale and Nasal Obstruction Symptoms Evaluation (NOSE) score, but no correlation with Lund–Mackay score.</p> </sec> <sec id="coa12315-sec-0005" sec-type="section"> <title>Conclusion</title> <p>The SNOT‐22 is a reliable and valid tool to assess quality of life in French‐speaking patients and correlates well with known indices of disease severity.</p> </sec> </abstract>