Fig. 1.

Results of subjective improvement (a Differences between pre- and postoperative values of VAS measuring NA) and objective improvement (b Rhinomanometric differences between pre- and postoperative values of total nose inspiration at 150 pa) of nasal airflow (NA) and TDI score (c Differences between pre- and postoperative values in TDI). Data expressed as differences between pre- and postoperative values 2 months after ITR for all patients (n = 30). Box plots display the median, the quartiles, the range of values covered by the data and any outliers (single spots)