Evaluation of the prediction score (⩾2) in early stage RA at the first visit
| Total score | Sensitivity (%) | Specificity (%) | Positive predictive value (%) | Negative predictive value (%) | Accuracy (%) |
|---|---|---|---|---|---|
| We calculated the sensitivity and specificity of our scoring system for the prediction of early stage RA according to the sum of weighted scores described in table 1. | |||||
| Sensitivity and specificity are shown for patients classified as early stage RA according to the total score (sum of weighted score 1–3). | |||||
| We evaluated the statistical character of prediction score (⩾2) for the present 113 patients for the prediction of RA at entry. | |||||
| ⩾1 | 96.3 | 30.3 | |||
| ⩾2 | 82.5 | 84.8 | 93.0 | 66.7 | 83.2 |
| 3 | 50.0 | 96.9 | |||