Table 1: Population characteristics.
| Patient with SIT | Patient with GFP+SIT | |
| n | 30 (100%) | 30 (100%) |
| Age (years) | 31 (4-58) | 36 (4-68) |
| Men (%) | 9 (30%) | 13 (43.3%) |
| Mild intermittent | 14 (47%) | 16 (53%) |
| Mild persistent | 14 (47%) | 12 (41%) |
| Moderate-severe intermittent | 1 (3%) | 1 (3%) |
| Moderate-severe persistent | 1 (3%) | 1 (3%) |