Table 1.
Fulfilled ASAS criteria for axial SpA | ||
---|---|---|
Investigator diagnosis of axial SpA | Imaging arm | Clinical arm |
Yes (n = 157) | 112 (71.3) | 45 (28.7) |
No (n = 72) | 10 (13.9) | 62 (86.1) |
Values are the number (%) of patients. Patients were classified as having nonradiographic axial spondyloarthritis (SpA) according to the Assessment of SpondyloArthritis international Society (ASAS) criteria. AS = ankylosing spondylitis.