Table 6 Receiver operating characteristic curve analysis
Characteristics | AUC | 95% CI | Cut-off | Sensitivity | Specificity | Positive predictive value | Negative predictive value | Positive likelihood ratio | Negative likelihood ratio |
|---|---|---|---|---|---|---|---|---|---|
Preoperative lactate level (mmol/L) | 0.690 | 0.592–0.777 | 4.5 | 58.82 | 80.46 | 37.0 | 90.9 | 3.01 | 0.51 |
Postperative lactate level (mmol/L) | 0.771 | 0.678–0.848 | 5.9 | 64.7 | 82.8 | 42.3 | 92.3 | 3.75 | 0.43 |
Postoperative lactate clearance (%) | 0.628 | 0.528–0.721 | 15.33 | 100.0 | 29.9 | 21.8 | 100.0 | 1.43 | 0.00 |