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Prevalence of SpAs in patients with ADs.
| n (%) | RA (n = 671) | SLE (n = 239) | SS (n = 167) | All (n = 1077) |
|---|---|---|---|---|
| AS | 0 | 0 | 1 (0.59) | 1 (0.092) |
| PsA | 1 (0.15) | 0 | 0 | 1 (0.092) |
| IBD | 2 (0.3) | 1 (0.41) | 0 | 3 (0.28) |
|
| ||||
| All SpAs | 3 (0.44) | 1 (0.41) | 1 (0.59) | 5 (0.46) |
SLE: systemic lupus erythematosus, RA: rheumatoid arthritis, SS: Sjögren's syndrome, AS: ankylosing spondylitis, PsA: psoriatic arthritis, IBD: inflammatory bowel disease, and SpAs: spondyloarthropathies.
