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K.M. Phillips - K.W. Singerman - A.R. Sedaghat
Background: The goal of this study was to determine how to translate visual analogue scale (VAS) symptom scores to the binary, descriptive symptom scales used in the European Position Paper on Rhinosinusitis and Nasal Polyps (EPOS) criteria for chronic rhinosinusitis (CRS) disease control.
Methods: 309 CRS patients were recruited. All patients rated their burden of 5 symptoms (nasal blockage, rhinorrhea/postnasal drip, facial pain/pressure, smell loss, sleep disturbance or fatigue) using the binary EPOS descriptive symptom scales and a VAS (on a scale of 0 to 10). In addition, participants completed a 22-item Sinonasal Outcome Test (SNOT-22) and rated their overall CRS disease control as “controlled”, “partly controlled” or “uncontrolled”.
Results: Symptom burdens measured by VAS, binary descriptive EPOS scale and SNOT-22 were associated with worsening CRS disease control reported by participants. Each symptom had a distinct VAS score cut-off that strongly predicted the uncontrolled option on the corresponding binary descriptive EPOS symptom scale. However, the predictive ability of VAS for rhinorrhea/ postnasal drip was disparately worse than the other 4 symptoms. When considering all symptom data simultaneously, a VAS score higher than 3.5 strongly predicted the uncontrolled option on the corresponding binary descriptive EPOS symptom scale for all 5 symptoms.
Conclusions: A VAS symptom score of higher than 3.5 translates to the uncontrolled option in the binary, descriptive symptom scale of the EPOS control criteria. The rhinorrhea/postnasal drip descriptive symptom scale translates disparately worse to VAS scores and may be considered for revision in future criteria.
Rhinology 0-0: 0-0, 0000
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