Table 1.

Clinical characteristics of GC patients in TCGA database

Characteristics		Total TCGA (N = 371)
Age (years)	≦65	159
	>  65	208
	unknown	4
Gender	Male	134
	Female	237
Stage	Stage I-II	164
	Stage III-IV	184
	unknown	23
Grade	Grade 1–2	146
	Grade 3	126
	unknown	9
T	T1–2	99
	T3–4	264
	unknown	8
M	M0	327
	M1	26
	unknown	18
N	N0	114
	N1–3	242
	unknown	15