Sacroiliitis and iliac enthesitis in the groups
| Enteroarthritis (n = 53) | Uroarthritis (n = 37) | Reiter’s syndrome, aetiology unknown (n = 5) | Total (n = 95) | |
|---|---|---|---|---|
| *Significant difference between groups (p<0.05). | ||||
| NY, New York criteria for sacroiliitis; Stoke, Stoke criteria for sacroiliitis. | ||||
| Sacroiliitis (NY) grade 2–4 (%) | 7 (13)* | 12 (32)* | 3 (60) | 22 (23) |
| Sacroiliitis (Stoke) grade 2–4 (%) | 8 (15) | 11 (30) | 3 (60) | 22 (23) |
| Sacroiliitis (NY) grade 3–4 (%) | 4 (8) | 8 (22) | 2 (40) | 14 (15) |
| Sacroiliitis (Stoke) grade 3–4 (%) | 4 (8) | 6 (16) | 3 (60) | 13 (14) |
| Unilateral sacroiliitis (NY) grade 2–4 (%) | 1/7 (14) | 4/12 (33) | 0/3 (0) | 5/22 (23) |
| Unilateral sacroiliitis (Stoke) grade 2–4 (%) | 3/8 (38) | 3/11 (27) | 0/3 (0) | 6/22 (27) |
| Iliac enthesitis (%) | 2 (4) | 3 (8) | 1 (20) | 6 (6) |