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Background Patient-reported control of chronic rhinosinusitis (CRS) symptoms is associated with the quality of life impact of CRS. We sought to determine if 22-item Sino-Nasal Outcome Test (SNOT-22) score is predictive of patient-perceived CRS symptom control. Methods Prospective cross-sectional study of 202 patients with CRS. Participants were asked to rate their CRS symptom control as 'not at all,' 'a little,' 'somewhat,' 'very,' and 'completely.' The severity of patient CRS symptomatology was measured using the SNOT-22. The relationship between SNOT-22 score and patient-reported CRS symptom control was determined using regression, analysis of variance (ANOVA), and receiver operating characteristic (ROC) curve analysis. Results SNOT-22 was negatively associated with patient-reported CRS symptom control (adjusted β = −0.03; 95% CI, −0.04 to −0.02; p < 0.001), after controlling for demographic and clinical characteristics. There was a significant difference in SNOT-22 scores of participants reporting each level of symptom control ( p < 0.001) with the greatest differences between participants who rated their CRS symptom control as 'not at all,' 'a little,' and 'somewhat,' which we deem poor CRS symptom control, and the group who described their level of CRS symptom control described as 'very' and 'completely,' which we deem well-controlled CRS symptoms. These results were true across all SNOT-22 subdomains scores as well. Using ROC analysis, a SNOT-22 score of 35 identified patients reporting poor vs well-controlled CRS symptom control with 71.4% sensitivity and 85.5% specificity. Conclusion SNOT-22 score is associated with how well patients feel their CRS symptomatology is controlled. Moreover, SNOT-22 score can be used to accurately distinguish patients with poor vs well-controlled CRS symptoms. [ABSTRACT FROM AUTHOR]

Background: Chronic rhinosinusitis (CRS) is associated with varied head and neck symptomatology and quality-of-life impairments that are not necessarily correlated with each other or with objective measures of disease. Objective: To determine how clustering patterns of CRS symptoms associate with objective clinical findings. Methods: Symptom scores from 193 Sinonasal Outcomes Test-22 (SNOT-22) questionnaires, from 177 consecutive CRS patients, were analyzed by principal component analysis (PCA) to uncover fewer and physiologically understandable latent components. Univariate and multivariate regressions were made with patients' demographic characteristics, nasal polyposis, comorbid allergic rhinitis, asthma, gastro-esophageal reflux disease (GERD) or depression, and Lund-Mackay scoring of sinus computed tomography (CT) results. Results: Four principal components (PCs), heavily weighted on sleep symptoms, nasal symptoms, otologic symptoms, and emotional function symptoms, respectively, are found to primarily describe the variability in patients' SNOT-22 scores. SNOT-22 subset scores reflecting sleep, nasal, otologic, and emotional function symptoms were constructed from corresponding PCs. Only female gender associated with the total SNOT-22 score (p = 0.004), whereas only Lund-Mackay score associated with the nasal subset score (p = 0.015). Allergic rhinitis only associated with the otologic subset score (p = 0.005), whereas only asthma associated with the emotional function subset score (p = 0.027). None of the measured covariates were associated with the sleep subset score. Conclusion: Variability in SNOT-22 scores from CRS patients may be explained by the independent presence of sleep, nasal, otologic, and emotional function symptoms, with which we find novel clinical and demographic associations. These findings may represent clinical evidence for distinct pathophysiologic processes that differentially cause specific CRS symptomatology. [ABSTRACT FROM AUTHOR]