Table 1.

Baseline information of patients in TCGA.

Clinical features		Number	Percentage (%)
Age	<=65	241	46.2
	>65	262	50.2
	Unknown	19	3.6
Gender	Female	280	53.6
	Male	242	46.4
Stage	Stage I	279	53.4
	Stage II	124	23.8
	Stage III	85	16.3
	Stage IV	26	5.0
	Unknown	8	1.5
T-stage	T1	172	33.0
	T2	281	53.8
	T3	47	9.0
	T4	19	3.6
	Unknown	3	0.6
M-stage	M0	353	67.6
	M1	25	4.8
	Unknown	144	27.6
N-stage	N0	335	64.2
	N1	98	18.8
	N2	75	14.4
	N3	2	0.4
	Unknown	12	2.3