Research Article
Immunodiagnostic Significance of Anti-RA33 Autoantibodies in Saudi Patients with Rheumatoid Arthritis
Table 3
Predictive value, specificity, and sensitivity of the anti-CCP and anti-RA33 tests in RA diagnosis.
| | | Anti-CCP | Anti-RA33 |
| | Compared to healthy donors | | | | Sensitivity (%) | 63.4 | 7.3 | | Specificity (%) | 96.5 | 96.5 | | Positive predictive value (%) | 96.3 | 75.0 | | Negative predictive value (%) | 65.1 | 42.4 | | Compared to non-RA patients | | | | Specificity (%) | 87.1 | 96.7 | | Positive predictive value (%) | 86.6 | 75.0 | | Negative predictive value (%) | 64.2 | 44.1 | | Compared to non-RA patients and healthy controls | | | | Specificity (%) | 90.2 | 95.1 | | Positive predictive value (%) | 86.6 | 60.0 | | Negative predictive value (%) | 71.1 | 50.6 |
|
|
