Response to treatment
REGRESSION
Mepolizumab efficacy versus placebo on VAS and SNOT-22 was determined using the meaningful within-patient change thresholds for individual and overall symptoms VAS and for the SNOT-22 total score. Meaningful within-patient changes were analyzed using a logistic regression model with covariates of treatment group, geographic region, baseline score, and log(e) baseline blood eosinophil count. Additional analysis details are included in Additional file 