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Rhinology Outcome Tool: SNOT-20

Rhinology Outcome Tool: SNOT-20

Sino-Nasal Outcome Test-20 (SNOT-20)


Patient-reported measure of outcome in sino-nasal disorders such as rhinosinusitis and nasal polyposis

Targeted Age


Items (Domains)

20 (2)

Estimated Completion Time

10 minutes

Reliability/Validity Assessment



1) Jones ML, Piccirillo, JF, Haiduk A, Thawley SE. Functional encoscopic sinus surgery: do ratings of appropriateness predict patient outcomes. Am J Rhinol 1998;12:249-55.

2) Browne JP, Hopkins C, Slack R, Cano SJ. The Sino-Nasal Outcome Test (SNOT): can we make it more clinically meaningful? Otolaryngol Head Neck Surg 2007;136:736-41.

3) Piccirillo JF, Merritt MG Jr, Richards ML. Psychometric and clinimetric validity of the 20-Item Sino-Nasal Outcome Test (SNOT-20). Otolaryngol Head Neck Surg 2002;126:41-7.

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