What question did this study set out to answer?

The aim is to validate the Overall Symptom Severity Score (OSS) for assessing chronic rhinosinusitis (CRS) symptom severity.

April 24, 2026Otolaryngology0 citations

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Psychometric Validation of the Overall Symptom Severity Score for Chronic Rhinosinusitis

CLChristine W. LeeUniversity of Cincinnati Medical Center IAImani H. AgardUniversity of Cincinnati Medical Center NPNikhil ParailUniversity of Cincinnati Medical Center

Key Points

The aim is to validate the Overall Symptom Severity Score (OSS) for assessing chronic rhinosinusitis (CRS) symptom severity.
Conducted psychometric analysis of the OSS score.
Evaluated criterion validity, test-retest reliability, and responsiveness of the score.
The OSS score demonstrated excellent criterion validity.
Test-retest reliability was confirmed as strong.
Minimum Clinically Important Differences (MCIDs) for improvement and worsening were proposed as ≥1.6 or >1.5.

Abstract

The OSS score is a psychometrically valid measure of CRS symptom severity, with excellent criterion validity, test-retest reliability, and responsiveness. The MCIDs for improvement and worsening are proposed to be ≥1.6 (or >1.5).

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Psychometric Validation of the Overall Symptom Severity Score for Chronic Rhinosinusitis

Key Points

Abstract

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