Table 1. Clinicopathological information of the three COAD patient cohorts in this study.

Covariates	Type	Total	Testing	Training	P value
Age	≤65	183	93	90	0.786
	>65	263	129	134
Gender	Female	212	104	108	0.8459
	Male	234	118	116
Stage	Stage I–II	250	126	124	0.7071
	Stage III–IV	185	89	96
	Unknown	11	7	4
T	T1–2	86	47	39	0.3878
	T3–4	359	175	184
	Unknown	1	0	1
M	M0	329	161	168	1
	M1	61	30	31
	Unknown	56	31	25
N	N0	265	134	131	0.7585
	N1–2	181	88	93

COAD, colon adenocarcinoma.