Clinical characteristics of the patients performed serum analysis
| Disease group | HC | SS | SSc | PBC | Overlap |
| n=68 | n=112 | n=35 | n=10 | n=44 | |
| Female %, (n) | 82 (56) | 95 (106) | 86 (30) | 100 (10) | 100 (44) |
| Age median (IQR) | 44 (31–50) | 59 (47–72) | 59 (50–71) | 60 (57–72) | 64 (54–74) |
| ACA positive % (n) | NA | 13 (14) | 34 (12) | 30 (3) | 70 (31) |
| Anti-CENP-B antibody positive % (n) | 1.5 (1) | 13 (14) | 37 (13) | 30 (3) | 73 (32) |
| Disease type/complicated disease, n | pSS 71 sSS 15 non-SS 26 | dcSSc 10 lcSSc 25 | SS 32 SSc 37 PBC 30 |
dcSSc, diffuse cutaneous SSc; lcSSc, limited cutaneous SSc; NA, not accessed; PBC, primary biliary cirrhosis; pSS, primary Sjögren's syndrome; SS, Sjögren's syndrome; sSS, secondary Sjögren's syndrome.