Table 2.
Comparisons of demographic, laboratory, and clinical characteristics of patients with SpA between with and without gut inflammation.
| Gut inflammation (–) (n = 42) | Gut inflammation (+) (n = 23) | P value | |
|---|---|---|---|
| Age, yrs | 29.0 (25.0–35.3) | 32.0 (25.0–43.0) | 0.219 |
| Sex, male/female | 40/2 | 21/2 | 0.610 |
| PLT,10∧9/L | 233 (198–286) | 293 (235–331) | 0.008 |
| Hb, g/L | 145 (134–150) | 129 (114–140) | 0.002 |
| ESR, mm/h | 18 (5–39) | 37 (13–67) | 0.045 |
| CRP, mg/L | 7.2 (7.0–18.6) | 28.6 (7.2–66.1) | 0.006 |
| D-dimer, mg/L | 0.15 (0.12–0.23) | 0.73 (0.38–1.30) | <0.001 |
| FIB, g/L | 2.94 (2.27–4.13) | 3.35 (2.97–4.34) | 0.308 |
| PT, s | 11.7 (11.2–12.2) | 11.8 (11.2–12.8) | 0.206 |
| APTT, s | 30.9 (29.8–33.5) | 31.0 (29.8–33.6) | 0.678 |
| TT, s | 17.9 (16.9–18.7) | 17.5 (17.1–18.4) | 0.553 |
| axSpA/pSpA | 38/4 | 18/5 | 0.260 |
| HLA-B27 positivity, n (%) | 38 (90.5) | 20 (87.0) | 0.691 |
| Sacroiliitis, n (%) | 38 (90.5) | 18 (65.2) | 0.260 |
| Peripheral joint involvement, n (%) | 13 (31.0) | 18 (78.2) | <0.001 |
| Peripheral arthritis | 12 | 17 | |
| Enthesitis | 3 | 2 | |
| Dactylitis | 3 | 3 | |
| Anterior uveitis, n (%) | 3 (7.1) | 1 (4.3) | 1.000 |
| GI symptoms, n (%) | 3 (7.1) | 6 (26.1) | 0.057 |
| Loose stools | 2 | 3 | |
| Abdominal pain | 1 | 3 |
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.