Site of Disease Activity at Baseline on MRI
| Clinical Diagnostic category at 1 year | |||||
|---|---|---|---|---|---|
| pUA (n=8) | rUA (n=6) | CCP+ RA (n=7) | CCP− RA | SpA (n=12) | |
| Axial | 1 (13%) | 1 (17%) | 0 (0%) | 1 (17%) | 0 (0%) |
| SIJ | 2 (25%) | 0 (0%) | 0 (0%) | 3 (50%) | 4 (33%) |
| Large Joints | 3 (38%) | 4 (67%) | 4 (57%) | 6 (100%) | 6 (50%) |
| Small Joints | 6 (75%) | 2 (33%) | 7 (100%) | 5 (83%) | 6 (100%) |
| Tendons | 3 (38%) | 1 (17%) | 5 (71%) | 5 (83%) | 4 (33%) |
| Entheses | 6 (75%) | 3 (50%) | 4 (57%) | 5 (83%) | 8 (67%) |
Key: pUA = Persistent UA, rUA = Resolved UA, RA = Rheumatoid arthritis, SpA = Spondyloarthropathy.