Table 1. The relationship between the expression of circ-ZKSCAN1 and various clinicopathological variables.

Characteristics	Total	circ-ZKSCAN1 expression		P value
		Low	High
Total	107	37	70
Age (years)				0.360
<60	63	24	39
≥60	44	13	31
Sex				0.514
Male	59	22	37
Female	48	15	33
Clinical stage				0.043*
I	55	24	31
II	52	13	39
Tumor size (cm)				0.017*
<1	44	21	23
≥1	63	16	47
Smoking				0.326
Yes	48	19	29
No	59	18	41
Differentiation				0.893
High	36	13	23
Moderately	48	17	31
Poorly	23	7	16
Lymph node metastasis				0.193
Yes	32	14	18
No	75	23	52

*P<0.05.