Table 3.
Performance of the screening score model (Lee et al. [8]) in predicting prediabetes and undiagnosed diabetes using the data from the Korean National Health and Nutrition Examination Survey (KNHANES) 2010 and 2011.
| AUC | Accuracy (%) | Sensitivity (%) | Specificity (%) | ||
|---|---|---|---|---|---|
| Prediabetes | KNHANES 2010∗(internal validation) | 0.734 | 63.4 | 76.1 | 60.0 |
| KNHANES 2011∗(external validation) | 0.712 | 59.9 | 74.3 | 56.4 | |
| Undiagnosed diabetes | KNHANES 2010†(internal validation) | 0.772 | 66.6 | 76.5 | 66.4 |
| KNHANES 2011†(external validation) | 0.751 | 64.6 | 74.4 | 64.3 |
AUC: area under the curve; KNHANES: Korean National Health and Nutrition Examination Survey.
Prediabetes was defined as fasting plasma glucose, with values ≥100 mg/dL and <126 mg/dL. ∗Internal and external validation sets to evaluate the screening score for prediabetes (n = 1,551 for KNHANES 2010 and n = 4,566 for KNHANES 2011). †Internal and external validation sets to evaluate the screening score for undiagnosed diabetes (n = 1,585 for KNHANES 2010 and n = 4,683 for KNHANES 2011).