Table 1.
RCBG cut points with respect to diabetes, IGT, and IFG in Asian Indians
| n (%) | RCBG (mg/dl) | RCBG cut points | Sensitivity | Specificity | PPV | AUC | Overall accuracy (%) | |
|---|---|---|---|---|---|---|---|---|
| Diabetes | ||||||||
| 2-h PG ≥200 mg/dl or FPG ≥126 mg/dl | 238 (17.9) | 187.3 ± 67.0 | 143 | 78.6 | 83.9 | 51.5 | 0.872 | 82.9 |
| 2-h PG ≥200 mg/dl | 185 (13.9) | 198.6 ± 69.1 | 140 | 86.5 | 80.7 | 42.0 | 0.900 | 81.5 |
| FPG ≥126 mg/dl | 194 (14.6) | 193.3 ± 70.2 | 143 | 80.4 | 81.7 | 42.9 | 0.873 | 81.5 |
| 2-h PG ≥200 mg/dl and FPG ≥126 mg/dl | 141 (10.6) | 210.5 ± 71.8 | 143 | 89.4 | 80.2 | 34.8 | 0.919 | 81.2 |
| IGT | ||||||||
| 2-h PG ≥140 mg/dl and <200 mg/dl | 375 (28.1) | 168.4 ± 62.6 | 119 | 64.7 | 65.5 | 27.2 | 0.715 | 65.4 |
| IFG (WHO) | ||||||||
| FPG ≥110 mg/dl and <126 mg/dl | 385 (28.9) | 165.0 ± 63.1 | 118 | 62.8 | 62.9 | 25.4 | 0.683 | 62.9 |
| IFG (ADA) | ||||||||
| FPG ≥100 mg/dl and <126 mg/dl | 633 (47.5) | 146.9 ± 57.1 | 113 | 58.3 | 58.6 | 46.9 | 0.619 | 58.5 |
| Abnormal glucose tolerance | ||||||||
| IGT and diabetes | 220 (16.5) | 191.8 ± 67.1 | 141 | 82.3 | 82.4 | 48.0 | 0.888 | 82.4 |
| Abnormal glucose regulation | ||||||||
| IFG (WHO) or IGT or diabetes | 497 (37.3) | 157.5 ± 59.3 | 121 | 70.2 | 69.9 | 58.1 | 0.777 | 70.0 |
| IFG (ADA) or IGT or diabetes | 698 (52.4) | 145.4 ± 55.5 | 116 | 66.5 | 65.5 | 68.0 | 0.714 | 66.0 |
Data are means ± SD unless otherwise indicated. AUC, area under the curve; PG, plasma glucose; PPV, positive predictive value.