Table 1.

Relationship between circ_IRAK3 expression and clinicopathologic features of breast cancer patients

	Characteristics n = 47	circ_IRAK3 expression		P valuea
		Low (n = 23)	High (n = 24)
Age (years)				0.2476
≤ 50	22	13	9
> 50	25	10	15
TNM grade				0.0032*
I  +  II	20	15	5
III	27	8	19
Lymph node metastasis				0.0087*
Positive	24	7	17
Negative	23	16	7
Tumor size				0.0012*
≤ 2 cm	23	17	6
> 2 cm	24	6	18
ER status				0.5639
Positive	22	12	10
Negative	25	11	14
PR status				0.7725
Positive	25	13	12
Negative	22	10	12
HER-2 status				0.2476
Positive	23	9	14
Negative	24	14	10

TNM tumor-node-metastasis

^aChi-square test

*P  < 0.05