Table 1.

Clinicopathological characteristics of CRC patients from TCGA database

		Entire cohort (n = 378)		Training cohort (n = 249)		Test cohort (n = 129)
Characteristic	Group	Number	Percentage (%)	Number	Percentage (%)	Number	Percentage (%)
Age (years)	< 60	135	35.71	89	35.74	46	35.66
	≥ 60	243	64.29	160	64.26	83	64.34
Gender	Male	207	54.76	143	57.43	64	49.61
	Female	171	45.24	106	42.57	65	50.39
Race	Asia	12	3.18	7	2.81	5	3.88
	White	276	73.02	178	71.49	98	75.97
	Black	60	15.87	41	16.46	19	14.73
	American Indian	1	0.26	0	0.00	1	0.77
	Not available	29	7.67	23	9.24	6	4.65
T stage	T1	12	3.18	8	3.21	4	3.10
	T2	54	14.29	29	11.65	25	19.38
	T3	262	69.31	178	71.49	84	65.12
	T4	49	12.96	33	13.25	16	12.40
	Not available	1	0.26	1	0.40	0	0.00
N stage	N0	204	53.97	136	54.62	68	52.71
	N1	102	26.99	63	25.30	39	30.23
	N2	69	18.25	47	18.88	22	17.06
	Nx	2	0.53	2	0.80	0	0.00
	Not available	1	0.26	1	0.40	0	0.00
M stage	M0	313	82.80	206	82.73	107	82.95
	M1	54	14.29	34	13.65	20	15.50
	Mx	8	2.12	6	2.41	2	1.55
	Not available	3	0.79	3	1.21	0	0.00
TNM stage	Ⅰ	55	14.55	32	12.85	23	17.83
	Ⅱ	137	36.24	95	38.15	42	32.56
	Not available	121	32.01	79	31.73	42	32.56
	Ⅳ	54	14.29	34	13.65	20	15.50
	Not available	11	2.91	9	3.62	2	1.55
Location	Right colon	167	44.18	109	43.78	58	44.96
	Left colon	100	26.45	62	24.90	38	29.46
	Rectum	92	24.34	64	25.70	28	21.70
	Not available	19	5.03	14	5.62	5	3.88