Characteristics of Patients with AS, N = 10,990 | n (%) | p |
---|---|---|
Whites | 9260 (84.3) | < 0.0001 |
African Americans | 920 (8.4) | |
Male sex | 5530 (50.3) | < 0.374 |
HLA-B27–positive | 740 (24.9) | |
HLA-B27 tested | 2970 (27.0) | |
Smokers | 7149 (64.9) | < 0.0001 |
AS: ankylosing spondylitis.