Table 2.
Performance of UG for predicting 2h-PG ≥7.8 mmol/L and ≥11.1 mmol/L
| Parameters | AUC | Optimal cutoff point (mg) | Sensitivity (%) | Specificity (%) |
|---|---|---|---|---|
| 2h-PG ≥7.8 mmol/L | 0.75 (0.74–0.75) | 130.0 | 52.3 (49.6–55.0) | 87.8 (87.0–88.6) |
| 2h-PG ≥11.1 mmol/L | 0.90 (0.89–0.91) | 178.5 | 83.5 (79.5–87.1) | 87.5 (86.7–88.2) |
| Parameters | PPV (%) | NPV (%) | +LR | −LR |
| 2h-PG ≥7.8 mmol/L | 49.2 (46.6–51.8) | 89.1 (88.3–89.9) | 4.3 (3.9–4.7) | 0.5 (0.5–0.6) |
| 2h-PG ≥11.1 mmol/L | 27.1 (24.6–29.7) | 99.0 (98.7–99.2) | 6.7 (6.2–7.2) | 0.2 (0.2–0.2) |
Data are means (95% CI). 2h-PG: 2-h plasma glucose; UG: Urinary glucose; AUC: The area under the ROC curves; PPV: Positive predictive value; NPV: Negative predictive value; +LR: Positive likelihood ratio; −LR: Negative likelihood ratio; CI: Confidence interval; ROC: Receiver operating characteristic.