Table 1.
Baseline information of the patients
| Group A | Group B | t/x2-statistic | P value | |
|---|---|---|---|---|
| Age (years) | 32.05 ± 10.96 | 32.60 ± 13.01 | − 0.145 | 0.886 |
| Disease course (years) | 6.92 ± 3.21 | 6.40 ± 2.70 | 0.554 | 0.583 |
| HLA-27 positive rates | 95% (57/60) | 100% (60/60) | 1.026 | 0.311 |
| CRP (mg/L) | 30.21 ± 6.98 | 30.04 ± 8.33 | 0.070 | 0.945 |
| VEGF (pg/ml) | 180.22 ± 18.51 | 182.87 ± 23.31 | − 0.399 | 0.692 |
| BASDAI scores (0–10) | 8.30 ± 0.78 | 8.43 ± 0.80 | − 0.522 | 0.604 |
| Pain VAS scores (0–10) | 8.90 ± 0.52 | 8.80 ± 0.54 | 0.597 | 0.554 |
| Morning stiffness-VAS scores (0–10) | 8.79 ± 0.55 | 8.77 ± 0.53 | 0.145 | 0.885 |
| RI | 0.52 ± 0.04 | 0.54 ± 0.06 | − 1.17 | 0.249 |
HLA-27 human leukocyte antigen B27, CRP C-reactive protein, VEGF vascular endothelial growth factor, BASDAI bath ankylosing spondylitis disease activity index, RI resistance index, VAS visual analogue scale