Table 1.
Demographic, laboratory, and clinical characteristics of the subjects.
| Healthy control | SpA patients | P value | |
|---|---|---|---|
| (n = 70) | (n = 65) | ||
| Age, yrs | 33.5 (28.8–37.3) | 29.0 (25.0–39.0) | 0.288 |
| Sex, male/female | 59/11 | 61/4 | 0.102 |
| PLT,10∧9/L | 232 (191–249) | 253 (219–310) | 0.043 |
| Hb, g/L | 148(139–156) | 142(125–149) | 0.010 |
| ESR, mm/h | 5(2–9) | 21(7–53) | <0.001 |
| CRP, mg/L | 0.4 (0.2–4.3) | 7.5 (7.2–37.2) | <0.001 |
| D-dimer, mg/L | 0.14 (0.11–0.32) | 0.21 (0.13–0.73) | 0.016 |
| FIB, g/L | 2.23 (1.83–2.60) | 3.10 (2.31–4.19) | <0.001 |
| PT, s | 11.6 (11.2–12.3) | 11.7 (11.2–12.4) | 0.628 |
| APTT, s | 30.5 (29.4–32.3) | 31.0 (29.8–33.6) | 0.169 |
| TT, s | 17.3 (16.9–17.7) | 17.7 (17.0–18.6) | 0.100 |
| axSpA/pSpA | 56/9 | ||
| HLA-B27 positivity, n (%) | 58 (89.2) | ||
| Sacroiliitis, n (%) | 56 (86.2) | ||
| Peripheral joint involvement, n (%) | 31(47.7) | ||
| Peripheral arthritis | 29 | ||
| Enthesitis | 5 | ||
| Dactylitis | 6 | ||
| GI symptoms, n (%) | 9 (13.8) | ||
| Anterior uveitis, n (%) | 4 (6.2) | ||
| Psoriasis, n (%) | 0(0) | ||
| Gut inflammation, n (%) | 23 (35.4) |
PLT, platelet; Hb, hemoglobin; ESR, erythrocyte sedimentation rate; CRP, C-reactive protein; FIB, fibrinogens; PT, prothrombin time; APTT, activated partial thromboplastin time; TT, thrombin time; HLA-B27, Human Leukocyte Antigen B27; GI, gastrointestinal. Bolded values indicate P < 0.05.