Table 4 Performance of the CRONICAS-CKD risk score for undiagnosed CKD using CRONICAS dataset
Total score | Youden Index | Sensitivity | Specificity | PPV | NPV | Correctly classified | LR+ | LR- |
|---|---|---|---|---|---|---|---|---|
Complete Risk Score | ||||||||
≥ 0 | 0% | 100.0% | 0.0% | 3.4% | – | 3.4% | 1.00 | – |
≥ 1 | 27.7% | 100.0% | 27. 7% | 4.6% | 100.0% | 30.1% | 1.4 | 0.00 |
≥ 2 | 52.5% | 82.5% | 70.0% | 8.8% | 99.1% | 70.4% | 2.8 | 0.3 |
≥ 3 | 50.7% | 60.0% | 90.7% | 18.3% | 98.5% | 89.6% | 6.4 | 0.4 |
≥ 4 | 16.1% | 17.5% | 98.6% | 29.8% | 97.2% | 95.8% | 12.1 | 0.8 |
laboratory-free Risk Score | ||||||||
≥ 0 | 0% | 100.0% | 00.0% | 3.4% | – | 3.4% | 1.0 | – |
≥ 1 | 28.3% | 98.8% | 29.6% | 4.7% | 99.9% | 31.9% | 1.4 | 0.0 |
≥ 2 | 52.0% | 80.0% | 72.0% | 9.1% | 99.0% | 72.3% | 2.9 | 0.3 |
≥ 3 | 41.3% | 48.8% | 92.6% | 18.7% | 98.1% | 91.1% | 6.6 | 0.6 |