Table 1.

Clinicopathological features for circRNA microarray

	Numbers	Percent (%)
Gender
Male	4	80
Female	1	20
Age at diagnosis
≤ 60	2	40
> 60	3	60
Tumor size (cm)
≤ 5	5	100
> 5	0	0
Differentiation
Well-moderate	0	0
Poor	0	0
Depth of invasion
T1–T2	0	0
T3–T4	0	0
Lymph node metastasis
No	2	40
Yes	3	60
TNM stage
I–II	2	40
III–IV	3	60