Immune Infiltration Represents Potential Diagnostic and Prognostic Biomarkers for Esophageal Squamous Cell Carcinoma

Table 3

Performance metrics of diagnostic immune score for discrimination of tumor from normal tissue in different datasets.

Dataset	Sn	Sp	Acc	AUC
Training cohort (GSE53625)	1.000	0.981	0.993	0.999
Internal validation cohort (GSE23400)	0.717	0.875	0.792	0.813
External validation cohort (TCGA-ESCC and GTEx)	0.843	0.960	0.882	0.966

Note: Sn: sensitivity; Sp: specificity; Acc: overall accuracy.