Identification of Combinations of Plasma lncRNAs and mRNAs as Potential Biomarkers for Precursor Lesions and Early Gastric Cancer

Table 2

Positive rates of single and combined tumour markers in patients with PLGC and EGC.

Tumour markers	Threshold	PLGC (n = 111)	EGC (n = 129)
CEA	>5.0 ng/ml	7 (6.3%)	17 (13.2%)
AFP	>20 ng/ml	0 (0%)	0 (0%)
CA19-9	>37 U/ml	4 (3.6%)	6 (4.7%)
CEA + AFP + CA19-9		10 (9.0%)	20 (15.5%)

PLGC, precursor lesions of gastric cancer; EGC, early gastric cancer; CEA, carcinoembryonic antigen; AFP, alpha fetoprotein.