Table 1.

Clinical and pathologic information of training set, testing set and entire set.

Character	TRAINING SET		TESTING SET		ENTIRE SET
	Number	%	Number	%	Number	%
Age
Median	65		64.5		65
Range	35–85		39–88		35–88
OS (M)
Median	15.3		16.1		15.6
Range	1.1–72.7		1.0–91.4		1.0–91.4
STATUS
ALIVE	52	44.83	24	48.00	76	45.78
DEAD	64	55.17	26	52.00	90	54.22
gender
Male	66	56.90	24	48.00	90	54.22
Female	50	43.10	26	52.00	76	45.78
AJCC_stage
I	14	12.07	4	8.00	18	10.84
II	97	83.62	44	88.00	141	84.94
III	2	1.72	1	2.00	3	1.81
IV	3	2.59	1	2.00	4	2.41
Grade
G1	17	14.66	9	18.00	26	15.66
G2	65	56.03	26	52.00	91	54.82
G3	32	27.59	15	30.00	47	28.31
G4	2	1.72	0	0.00	2	1.21
T STAGE
T1	3	2.59	3	6.00	6	3.61
T2	16	13.79	5	10.00	21	12.65
T3	95	81.90	41	82.00	136	81.93
T4	2	1.72	1	2.00	3	1.81
N STAGE
N0	32	27.59	13	26.00	45	27.11
N1	81	69.82	37	74.00	118	71.08
NX	3	2.59	0	0.00	3	1.81
M STAGE
M0	59	50.86	17	34.00	76	45.78
M1	3	2.59	1	2.00	4	2.41
MX	54	46.55	32	64.00	86	51.81