Fig. 3

No significant differences in rate of polyp as well as symptom burden reduction and improvements in smell function are seen between ^InitialTPS ≤ 4 and ^InitialTPS ≥ 5 groups. Spaghetti plots produced through statistical modelling display rate of change across time (0–6 months, x-axes) in TPS (y-axis = score 0–8) (a), Sniffin´ Sticks 16 scores (y-axis = score 0–16) (b) and SNOT-22 score (y-axis = score 0–110) (c). Black lines represent individual patients and green lines indicate the estimated rate of change according to the statistical model