Demographic and clinical features of patients with spondyloarthropathy
| Spondyloarthropathy patients (n=21) | |
| Age (years) | 49 (26–73) |
| Sex (male/female) | 17/4 |
| Disease duration (years) | 17 (1–42) |
| Swollen joint count | 3 (0–12) |
| Sedimentation rate (mm/1st h) | 44 (10–101) |
| C reactive protein (mg/l) | 46 (7–290) |
| HLA-B27 (+/−) | 14/5 |
| Ankylosing spondylitis | 10 |
| Psoriatic arthritis | 9 |
| Undifferentiated spondyloarthropathy | 2 |
Values are median (range) where appropriate.