Table 1.
Demographic characteristics of enrolled patients with AS and healthy controls
| AS N = 60 |
Healthy controls N = 45 |
p value | |
|---|---|---|---|
| Age, years | 37.9 ± 13.5 | 39.3 ± 13.2 | 0.511 |
| Gender, male | 42 (70.0) | 34 (75.6) | 0.527 |
| Disease duration, years | 8 (3, 17) | - | - |
| HLA-B27 positivity | 58 (96.7) | - | - |
| mSASSS (0–72) | 2 (0, 9) | - | - |
| Sacroiliitis grade (0–4) | 3 (2, 3) | - | - |
| ESR, mm/h | 23.3 ± 17.9 | - | - |
| CRP, mg/dl | 0.9 (0.2, 2.1) | - | - |
| BASDAI (0–10) | 4.5 ± 2.2 | - | - |
| BASFI score (0–10) | 2.4 ± 2.4 | - | - |
| BAS-G score (0–10) | 4.5 ± 2.5 | - | - |
| Biologic used | 11 (18.3%) | - | - |
Abbreviation: BASDAI Bath Ankylosing Spondylitis Disease Activity Index, BASFI BAS Functional Index, BAS-G BAS Patient Global Score, CRP C-reactive protein, ESR Erythrocyte sedimentation rate, HLA Human leukocyte antigen, mSASSS Modified Stokes Ankylosing Spondylitis Spinal Score
Data are presented as frequency (percentage), mean ± standard deviation, or median (interquartile range)