| Group | c-Jun protein staining* | Epithelial integrity† | ||||
| Weak | Strong | p Value‡ | Damage | Intact | p Value‡ | |
| GC-naïve NP | 6 | 4 | 0.01 | 8 | 2 | 0.023 |
| GC-treated NP | 0 | 10 | 2 | 8 | ||
| Damaged epithelium† | 6 | 4 | 0.01 | NA | NA | NA |
| Intact epithelium† | 0 | 10 | NA | NA | ||
*Referring to c-Jun protein staining in table 1 (overall score of ⩾6 defined as “strong” expression and <6 as “weak” expression).
†Referring to epithelium damage in table 1 (grade 0 defined as intact epithelium; grades 1 and 2 defined as damaged epithelium).
‡p Value obtained by the Fisher exact test.
GC, glucocorticosteroid; NA, not applicable; NP, nasal polyposis.