Dropouts
A total of n=106 patients were included in the trial and only 80 patients (75.5%) completed the medication regime of 1 month of systemic steroid and 3 months of intranasal steroids. Only n=61 patients of those (76.25%) completed the long-term follow-up. All patients were contacted and asked for reasons for the dropout. The main reasons for dropout were long distance to the test center and the time-consuming study visits (please compare CONSORT diagram 