Table 4.
ROC Statistics for Predictors of 1-Year Insulin Dependence
| Predictors of Insulin Dependence | ROC AUC | 95% CI | P Value | 100% Sensitivity Cutoff | 100% Specificity Cutoff | Youden Cutoff Pointa | Youden Sensitivity (%) | Youden Specificity (%) |
|---|---|---|---|---|---|---|---|---|
| Preoperative 1-hour glucose | 0.80 | 0.63–0.96 | <0.01 | <64 mg/dL | ≥189 mg/dL | 119 mg/dL | 81.82 | 80.0 |
| Preoperative fasting glucose | 0.75 | 0.57–0.94 | <0.01 | <63 mg/dL | ≥104 mg/dL | 78 mg/dL | 91.67 | 50.0 |
| Preoperative HbA1c | 0.74 | 0.55–0.92 | 0.01 | <4.5% | ≥5.8% | 5.6% | 45.83 | 90.0 |
| Preoperative 2-hour glucose | 0.71 | 0.53–0.88 | 0.02 | <38 mg/dL | ≥141 mg/dL | 141 mg/dL | 52.17 | 100 |
a
The cutoff offering optimal sensitivity and specificity.