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Results of ROC curve analysis on POD 4 (cutoff value, 180 mg/L).
| Accuracy | PPV | NPV | AUC | Sensitivity | Specificity |
|---|---|---|---|---|---|
| 0.743 | 0.307 | 0.972 | 0.821 | 0.723 | 0.889 |
AUC, area under the curve; NPV, negative predictive value; POD, postoperative day; PPV, positive predictive value; ROC, receiver operating characteristic.
