From: HLA-B27: natural function and pathogenic role in spondyloarthritis
Disease | HLA-B27 frequency (%) (approximate) |
Ankylosing spondylitis | 96 |
Undifferentiated spondyloarthropathy | 70 |
Reactive arthritis | 30–70 |
Colitis-associated spondyloarthritis | 33–75 |
Psoriatic spondyloarthritis | 40–50 |
Juvenile enthesitis-related arthritis | 70 |
Iritis | 50 |
Cardiac conduction defects with aortic incompetence | Up to 88 |