Table 1.

Correlation between circPVT1 expression and clinicopathological characteristics of LUSC patients (N = 104)

Characteristics	Total number	Low expression (N = 50)	High expression (N = 54)	P value
Age				0.3216
< 60	44	24	20
≥ 60	60	26	34
Gender				0.1936
Male	74	39	35
Female	30	11	19
Smoking history				0.1733
Yes	78	41	37
No	26	9	17
TNM stage				0.0001
I-II	50	35	15
III-IV	54	16	38
Tumor size				0.0468
≤ 5 cm	63	36	27
> 5 cm	41	15	26
Lymph node metastasis				0.0014
Yes	60	21	39
No	44	30	14
Differentiation
Not poor	48	28	20	0.1151
Poor	56	23	33