Table 1 Baseline demographic and clinical characteristics (N = 397)
Characteristica | Â |
|---|---|
Age, years | 42.0 (11.5) |
Sex, n (%) | Â |
   Female | 96 (24.2) |
   Male | 301 (75.8) |
Race, n (%) | Â |
   White | 380 (95.7) |
   Non-white | 17 (4.3) |
HLA-B27, n (%) | Â |
   Negative | 74 (18.9) |
   Positive | 317 (81.1) |
Duration of AS, years | 11.3 (9.4) |
Patient's global assessment of disease activity, 0-100-mm VAS | 64.2 (20.7) |
BASFI, 0-100 VAS | 53.9 (21.9) |
Inflammation, 0-100-mm VAS | 67.7 (20.2) |
Total back pain, 0-100-mm VAS | 66.2 (20.2) |
BASDAI, 0-10-cm VAS | 6.3 (1.7) |
C-reactive protein, mg/dL | 1.9 (2.4) |