Table 1 Demographic characteristics of AS and OA patients and healthy controls
|  | Ankylosing spondylitis (AS) (n = 44) | Osteoarthritis (OA) (n = 29) | Healthy controls (HC) (n = 16) |
|---|---|---|---|
Male/female | 35/7 | 20/9 | 9/7 |
Age (y) | 35.93 ± 11.30 | 43.48 ± 11.21 | 33.38 ± 5.88 |
HLA-B27 (+) | 36 | NA | NA |
ESR (mm/h) | 42.29 ± 25.74 | 8.92 ± 8.26 | NA |
CRP (mg/L) | 25.41 ± 19.75 | 9.56 ± 21.96 | NA |
BASDAI score | 52.3 ± 14.7 | NA | NA |
BASFI score | 62.24 ± 17.98 | NA | NA |
VAS score | 5.26 ± 1.94 | NA | NA |
BAS-G score | 5.51 ± 1.56 | NA | NA |
Disease duration (months) | 155 ± 103 | NA | NA |
Morning stiffness (min) | 13 ± 16 | NA | NA |
Serum CCL19 (pg/ml) | 354.12 ± 75.49 | 304.55 ± 82.82 | 215.15 ± 50.20 |
Serum CCL21 (pg/ml) | 535.33 ± 124.22 | 470.13 ± 79.75 | 390.92 ± 38.12 |