Group | Optimal cut-off value | Sensitivity | Specificity | Positive predictive value | Negative predictive value | Accuracy | AUC (95%CI) |
---|---|---|---|---|---|---|---|
CEA > 3.4 ng/ml | 7.13 ng/ml | 0.588 | 0.75 | 0.934 | 0.231 | 0.611 | 0.623(0.467–0.78) |
CEA ≤3.4 ng/ml | 3.21 ng/ml | 0.09 | 0.987 | 0.889 | 0.487 | 0.509 | 0.521(0.432–0.61) |