Metabolic Perturbation and Potential Markers in Patients with Esophageal Cancer

Table 3

ROC curves of low-level biomarkers in the EC group.

Marker	Cutoff value^a	Sensitivity	Specificity	AUC	value	95% CI^b
Pipecolic acid	8.50	87.5%	85.7%	0.875	<0.001	0.762–0.988
Glucose	109.60	83.3%	100.0%	0.952	<0.001	0.897–1.000
Glutamic acid	27.44	79.2%	100.0%	0.923	<0.001	0.844–1.000
Oleic acid	14.62	83.3%	66.7%	0.794	0.001	0.663–0.924

^aCutoff value (×10⁵); ^b95% confidence interval of the difference.