Table 1.
Clinical characteristics of the subjects.
| Characteristic | AS (n = 115) | HCs (n = 108) |
|---|---|---|
| Basic characteristics | ||
| Male | 71 | 33 |
| Female | 44 | 75 |
| Age (years), mean ± SD | 42.18 ± 13.76 | 30.68 ± 7.53 |
| BMI (kg/m2), mean ± SD | 25.12 ± 3.57 | 21.67 ± 3.60 |
| Clinical variables | ||
| ESR (mm/h), mean (median) | 26.91 (2) | 18.33 (20) |
| CRP (mg/L), mean (median) | 16.04 (8.88) | 7.88 (2.87) |
| ALP (U/L), mean (median) | 88.94 (90) | 86.25 (86) |
| ALB (g/mL), mean (median) | 41.11 (41.3) | 44.02 (45.7) |
| ASDAS, mean ± SD | 2.05 ± 0.35 | — |
| HLA-B27 | 87.83% | — |
BMI: body mass index; ESR: Erythrocyte sedimentation rate; CRP: C-reactive protein; ALP: alkaline phosphatase; ALB: albumin; ASDAS: ankylosing spondylitis disease activity index; HLA-B27: human leukocyte antigen-B27.