Table 1 Characteristics of the 97 patients with ankylosing spondylitis
Variables | N(%) or mean ± sd or median(range) |
|---|---|
Age, years | 50.86 ± 12.36 |
Male | 86(88.66%) |
Disease duration, years | 18.1(1–50) |
Inflammatory back pain | 96(98.97%) |
Ever Achilles enthesitis | 14(14.43%) |
Ever peripheral arthritis | 45(46.39%) |
Ever uveitis | 17(17.53%) |
Ever ulcerative colitis | 9(9.28%) |
Current smoker | 33(34.02%) |
Body mass index, kg/m2 | 24.72 ± 4.07 |
CRP, mg/dl | 3.0(0.01–18.68) |
ESR, mm/h | 33.37(2–111) |
HLA-B27 positive | 88(90.72%) |