Table 4.
Sensitivity and specificity for detecting prediabetes and diabetes by FPG and OGTT stratified by selected factors.
| Prediabetes by FPG | Prediabetes by OGTT | Diabetes by FPG | Diabetes by OGTT | |||||
|---|---|---|---|---|---|---|---|---|
| (n = 6068) | (n = 6068) | (n = 6884) | (n = 6884) | |||||
| Sensitivity (%) | Specificity (%) | Sensitivity (%) | Specificity (%) | Sensitivity (%) | Specificity (%) | Sensitivity (%) | Specificity (%) | |
| All cases | 53.7 | 100 | 81.1 | 100 | 45.4 | 100 | 93.0 | 100 |
| Sex | ||||||||
| Men | 62.0 | 100 | 75.2 | 100 | 45.3 | 100 | 89.7 | 100 |
| Women | 51.2 | 100 | 82.8 | 100 | 45.4 | 100 | 94.3 | 100 |
| Age group (yr) | ||||||||
| 20–<45 | 48.4 | 100 | 82.3 | 100 | 46.5 | 100 | 93.5 | 100 |
| 45–<60 | 54.4 | 100 | 79.8 | 100 | 44.1 | 100 | 92.8 | 100 |
| ≥60 | 60.9 | 100 | 83.6 | 100 | 50.5 | 100 | 93.8 | 100 |
| Hypertension | ||||||||
| Yes | 54.5 | 100 | 81.8 | 100 | 36.7 | 100 | 96.2 | 100 |
| No | 53.5 | 100 | 80.8 | 100 | 48.9 | 100 | 91.7 | 100 |
| Family history of diabetes | ||||||||
| Yes | 60.2 | 100 | 75.8 | 100 | 35.7 | 100 | 94.2 | 100 |
| No | 47.7 | 100 | 80.5 | 100 | 43.8 | 100 | 94.2 | 100 |
| BMI (kg/m2) | ||||||||
| <25 | 52.0 | 100 | 78.8 | 100 | 43.4 | 100 | 92.6 | 100 |
| 25–<30 | 53.2 | 100 | 81.9 | 100 | 43.4 | 100 | 93.1 | 100 |
| ≥30 | 56.7 | 100 | 83.6 | 100 | 45.9 | 100 | 94.6 | 100 |
Cut-off point for detecting prediabetes by FPG at 100 mg/dL and by OGTT at 140 mg/dL; cut-off point for detecting diabetes by FPG at 126 mg/dL and by OGTT at 200 mg/dL.