Table 2.
Ankylosing spondylitis patient characteristics
| Characteristics | Mean and SD (n=12) | Mean and SD (<10 Years) | Mean and SD (10–20 Years) | Mean and SD (>20 Years) |
|---|---|---|---|---|
| Clinical Features | ||||
| Age (Years) | 41.17±14.10 | 33.00±9.90 | 39.50±11.61 | 62.50±4.95 |
| Sex (M:F) | 12:0 | 4:0 | 6:0 | 2:0 |
| Age of Onset (Years) | 26.58±9.56 | 28.00±8.17 | 22.83±10.21 | 35.00±7.07 |
| Duration of Disease (Years) | 13.83±8.61 | 3.75±1.71 | 16.67±3.98 | 25.50±0.71 |
| Pain Score (0–10) | 4.44±3.70 | 3.88±3.47 | 4.30±3.91 | 6.00±5.66 |
| EMS (mins) | 77.96±141.12 | 128.75±234.53 | 55.00±57.18 | 12.50±0 |
| Schober’s Test | 11.19±6.34 | 15.00±0 | 14.17±0.76 | 1.00±1.41 |
| BASDAI | 3.82±3.10 | 4.46±3.78 | 3.22±3.10 | 4.38±3.97 |
|
| ||||
| Serological Features | ||||
| HLA-B27 (Positive:Negative) | 11:1 | 4:0 | 6:0 | 1:1 |
| CRP (mg/L) | 9.89±11.69 | 7.13±7.37 | 14.10±15.19 | 3.50±2.12 |
| ESR (mm/hr) | 17.64±20.68 | 11.33±13.58 | 23.00±25.95 | 11.00±12.73 |
|
| ||||
| Radiological Features | ||||
| X-Ray Score (0–4) | 2.20±1.53 | 1.50±1.50 | 1.90±1.43 | 4.00±0 |
SD: standard deviation; EMS: early morning stiffness; BASDAI: Bath Ankylosing Spondylitis Disease Activity Index; HLA-B27: human leukocyte antigen B27; CRP: C-reactive protein; ESR: erythrocyte sedimentation rate