Table 2 Anti-CCP2 antibodies and RF in RA and non-RA patients and normal controls.
Disease (n) | anti-CCP (%) | RF (%) |
|---|---|---|
Rheumatoid arthritis (155) | 98 (63.2) | 92 (59,1) |
Spondyloarthropathies (53) | 2 (3.8) | 5 (9.4) |
Systemic lupus erythematosus (32) | 2 (6.2) | 6 (18.7) |
Sjogren's syndrome (17) | 3 (17.6) | 3 (17.6) |
Osteoarthritis (19) | 0 (0.0) | 0 (0.0) |
Vasculitis (15) | 3 (20) | 4 (26.7) |
Polymyalgia rheumatica (11) | 0 (0.0) | 0 (0.0) |
Crystal arthritis (7) | 0 (0.0) | 1 (14.3) |
Adult onset Still's disease (5) | 0 (0.0) | 0 (0.0) |
Systemic sclerosis (5) | 1 (20) | 1 (20) |
Juvenile idiopathic arthritis (4) | 1 (25) | 1 (25) |
Brucellosis (4) | 2 (50) | 1 (25) |
Others (n = 6) | 0 (0.0) | 0 (0.0) |
Normal controls (100) | 0 (0.0) | 3 (3.0) |