Stratification of SNOT-22 scores into mild, moderate or severe and relationship with other subjective instruments.

AIMS AND OBJECTIVES

The European Position Paper on Rhinosinusitis and Nasal Polyps provides treatment algorithms based on the mild/moderate/severe (MMS) classification. To date there has been no statistically validated stratification of the SNOT-22 score according to this classification.

METHODS

65 consecutive patients diagnosed with CRS completed a SNOT-22, VAS and rated their symptoms according to MMS and impact on quality of life.

RESULTS

The median SNOT 22 scores varied between the 3 MMS categories. The interquartile ranges for the respective MMS groups were: Mild 8-17, Moderate 22.5-48, Severe 54-83. Median values for the respective MMs groups were: Mild 12, Moderate 36 and Severe 66. 15.38% of patients in the Mild category, 95.24% in the Moderate category and 100% in the Severe category feel their QoL is affected. There was a strongly positive correlation between the SNOT-22 and VAS scores.

CONCLUSION

We propose a statistically validated definition for stratification of the SNOT-22, with Mild being defined on the SNOT-22 score as 8-20 inclusive, Moderate as >20-50 and Severe as >50.