Disease
|
n
|
Anti-CCP-positive, n (%)
|
---|
SLE
|
318
|
16 (5.0)
|
Primary SS
|
183
|
7 (3.8)
|
SSc
|
97
|
2 (2.1)
|
PM/DM
|
54
|
3 (5.6)
|
MCTD/overlap syndrome
|
60
|
3 (5)
|
AOSD
|
28
|
1 (3.6)
|
SpA
| 38∗ |
1 (2.6)
|
Others†
|
4
|
0 (0)
|
Total
|
780‡
|
33 (4.2)
|
- CTD connective tissue disease,; systemic lupus erythematosus, SS Sjögren’s syndrome, SSc systemic sclerosis, PM polymyositis, DM dermatomyositis, MCTD mixed connective tissue disease, AOSD adult-onset Still’s disease, SpA spondyloarthritis
- †Takayasu arteritis; n = 1, anti-phospholipid syndrome; n = 1, polymyalgia rheumatica; n = 1, polyarteritis nodosa; n = 1
- ‡Including overlap
- *Thirteen out of 38 patients had erosive peripheral arthritis