Table 1. The clinic-pathological factors of GC patients.

Clinical factors	Expression of LINC00668		p value*
	low	high
Sex			0.696
male	30	28
female	23	25
Age			0.846
≤60	25	26
>60	28	27
Histological grade			0.331
Low or undiffer	25	30
middle or high	28	23
Invasion depth(T)			0.002**
T1	13	2
T2 or above	40	51
Lymph node metastasis (N)			0.326
N0	25	20
N1 or above	28	33
TNM stage			0.006**
I/II	37	23
III/IV	16	30

^*chi-square test

^**p < 0.01