Analysis comparing patients with SGS-related GPA (n = 34) requiring only 1 session of dilation versus those requiring more than 1 session.
| Variables | 1 Session | More than 1 Session | p |
|---|---|---|---|
| Age, yrs* | 32 (27–49) | 48 (36–62) | NS |
| Male** | 8 (42) | 3 (25) | NS |
| Time from diagnosis** | 24 (3–78) | 24 (0–90) | NS |
| BVAS* | 1 (0–3.5) | 0 (0–1) | 0.054 |
| SGS as sole sign** | 0 (0) | 2 (13) | NS |
| SGS diagnosed during remission** | 5 (26) | 6 (40) | NS |
| SGS diagnosed during therapy** | 4 (21) | 0 (0) | NS |
| Organ involvement*** | 15 (79) | 2 (13) | 0.00055 |
↵* Median (interquartile range), p in Mann-Whitney U test.
↵** n (%) of positive cases (for age and men), p in Fisher’s exact test.
↵*** n (%) of positive cases, p in chi-square test with Yates correction. SGS: subglottic stenosis; GPA: granulomatosis with polyangiitis; BVAS: Birmingham Vasculitis Activity Score; NS: not significant.