Sensitivity and specificity of anti-CCP and RF for presence of rheumatoid arthritis (RA). CCP2 (n=249); RF (n=214)
| Sensitivity (%) | Specificity (%) | PPV | NPV | |
|---|---|---|---|---|
| CCP | 66.0 | 90.4 | 82.9 | 79.0 |
| RF | 71.6 | 80.3 | 76.8 | 75.2 |
| CCP or RF | 81.4 | 79.5 | 78.3 | 82.4 |
| CCP and RF | 56.9 | 91.1 | 85.3 | 69.9 |