Table 1.

The clinical characteristics of COAD patients

Characteristics		Samples	Percent (%)
Gender	Female	179	45.3
	Male	216	54.7
Age	≤ 60y	119	30.1
	> 60y	276	69.9
Clinical stages	Stage I	67	17
	Stage II	153	38.7
	Stage III	113	28.6
	Stage IV	51	12.9
	Unknown	11	2.8
T stages	T0/Tis	1	0.3
	T1	9	2.3
	T2	68	17.2
	T3	269	68.1
	T4	48	12.2
N stages	N0	233	59
	N1	95	24
	N2	67	17
M stages	M0	297	75.2
	M1	51	12.9
	Unknown	47	11.9
Survival status	Alive	323	81.8
	Dead	72	18.2
Treatment or therapy	Yes	67	17
	No	296	74.9
	Unknown	32	8.1