Table 4. Clinical information statistics for three datasets.

Characteristic		TCGA training datasets (n=250)	TCGA test datasets (n=251)	GSE65858 (n=270)
Age(years)	<=50	38	50	41
	>50	212	201	229
Survival Status	Living	136	146	176
	Dead	141	105	94
Gender	female	68	66	47
	male	182	185	223
Grade	G 1	34	28
	G 2	136	163
	G 3	68	51
	G 4	2	0
Pathologic_T	T 1	17	28	35
	T 2	67	65	80
	T 3	48	48	58
	T 4	89	63	97
Pathologic_N	N 0	80	90	94
	N 1	26	39	32
	N 2	94	72	132
	N 3	2	5	12
Pathologic_M	M 0	94	93	263
	M 1/ M X	32	30	7
Tumor Stage	Stage I	9	16	18
	Stage II	37	32	37
	Stage III	30	48	37
	Stage IV	141	120	178