Table 4 Sensitivity, specificity, positive predictive value, and negative predictive value for selected cut-off values of the modified risk score in the Mongolian STEPS 2009 survey. 1018 men and women aged 35-64 years, of whom 59 had undiagnosed diabetes
Risk score cut-off point: | Proportion of sample, % | Sensitivity, % | Specificity, % | PPV, % | NPV, % |
|---|---|---|---|---|---|
≥0 | 100.0 | 100.0 | 0.0 | 5.8 | - |
≥ 3 | 97.2 | 100.0 | 2.9 | 6.0 | 100.0 |
≥ 4 | 82.1 | 96.6 | 18.8 | 6.8 | 98.9 |
≥ 5 | 77.3 | 96.6 | 23.9 | 7.2 | 99.1 |
≥ 6 | 77.1 | 96.6 | 24.1 | 7.3 | 99.1 |
≥ 7 | 63.9 | 94.9 | 38.0 | 8.6 | 99.2 |
≥ 8 | 45.7 | 83.1 | 56.6 | 10.5 | 98.2 |
≥ 9 | 43.4 | 81.4 | 58.9 | 10.9 | 98.1 |
≥ 10 | 41.3 | 78.0 | 61.0 | 11.0 | 97.8 |
≥ 11 | 23.4 | 57.6 | 78.7 | 14.3 | 96.8 |
≥ 12 | 17.1 | 49.2 | 84.9 | 16.7 | 96.4 |
≥ 13 | 16.5 | 49.2 | 85.5 | 17.3 | 96.5 |
≥ 14 | 12.8 | 39.0 | 88.8 | 17.7 | 95.9 |
≥ 15 | 4.0 | 16.9 | 96.8 | 24.4 | 95.0 |
≥ 16 | 3.1 | 13.6 | 97.5 | 25.0 | 94.8 |
≥ 17 | 2.8 | 11.9 | 97.7 | 24.1 | 94.7 |
≥ 18 | 0.7 | 3.4 | 99.5 | 28.6 | 94.4 |