From: The use of citrullinated peptides and proteins for the diagnosis of rheumatoid arthritis
Patient group | n | Anti-CCP2(+) | Sensitivity (%) | Specificity (%) |
---|---|---|---|---|
RA total | 17,359 | 12,431 | 71.6 | Â |
   Early | 4,379 | 2,677 | 61.1 |  |
   Established | 12,980 | 9,754 | 75.1 |  |
Controls | 20,222 | 960 | 4.7 | 95.3 |
   Non-RA | 15,461 | 911 | 5.9 | 94.1 |
   Healthy | 4,761 | 49 | 1.0 | 99.0 |