Demographic data of the spondyloarthritis (SpA) and control groups.
| Characteristics | SpA, n = 131 | Controls, n = 49 | p |
|---|---|---|---|
| Age, yrs, mean (± SD) | 42.15 (12.6) | 42.75 (12.9) | 0.78 |
| Male (%) | 76.3 | 81.6 | 0.81 |
| HLA-B27 (%) | 80.9 | — | |
| BASDAI, mean (± SD) | 38 (23) | — | |
| ASDAS, mean (± SD) | 2.56 (1.2) | — | |
| Disease duration, yrs, mean (± SD) | 12.43 (10) | — | |
| Axial/both/peripheral form | 86/38/7 | — |
BASDAI: Bath Ankylosing Spondylitis Disease Activity Index; ASDAS: Ankylosing Spondylitis Disease Activity Score.