Table 1.

Correlation between circNIPBL expression and clinicopathologic characteristics of BCa patients (n = 296)

Characteristics	No. of cases	circNIPBL expression
		Low	High	P-valuei
Total cases	296	148	148
Sex				0.608
Male	210	103	107
Female	86	45	41
Age				0.635
< 65	118	57	61
≥ 65	178	91	87
Grade				0.001 **
Low	96	74	22
High	200	74	126
T stage				0.001 **
T1	54	43	11
T2	79	55	24
T3	121	48	73
T4	42	12	30
Lymphatic metastasis				0.001 **
Negative	208	112	89
Positive	88	29	59

Abbreviations: No. of cases = number of cases; T grade = tumor grade. ⁱChi-square test, * p < 0.05, ** p < 0.01