Table 2 Sensitivity, specificity and positive predictive value of anti-MCV and anti-CCP for clinical diagnosis of RA in early arthritis patients
Antibody | Sensitivity (%; 95% CI) | Specificity (%; 95% CI) | PPV (%) |
|---|---|---|---|
Anti-CCP2 level ≥ 25 U/ml | 55.3 (46.1 to 64.2) | 92.1 (77.5 to 97.9) | 95.8 |
Anti-MCV level ≥ 20 U/ml | 59.3 (50.1 to 67.9) | 92.3 (78.0 to 97.9) | 96.1 |