Fig. 2

mRNA expression (fold change) of IL-5 (A, D), POSTN (B, E) and IL-33 (C, F) genes in sinonasal mucosa and NP tissue from CRS patients with and without NP with different levels of disease according to the L–M (A-C) and VAS (D–F) system. *p < 0.05; **p < 0.01; ***p < 0.001