Table 1. Relationship between expression of cyclin E2, miR-664b-5p and clinicopathologic characteristics of TNBC patients.

Variables	Cyclin E2				P-value	miR-664b-5p				P-value
	high(n = 54)		low(n = 36)			high(n = 40)		low(n = 50)
	No.	%.	No.	%		No.	%	No.	%
Age(years)					0.667					0.671
≦48	26	48.1	19	52.8		21	52.5	24	48.0
>48	28	51.9	17	47.2		19	47.5	26	52.0
Tumour size(cm)	13	24.1	18	50.0	0.022*	19	47.5	12	24.0	0.029*
≤2	38	70.4	18	50.0		21	52.5	35	70.0
2–5	3	5.6	0			0		3	6.0
>5					0.008*					0.001*
Metastatic lymph nodes	15	27.8	20	55.6		23	57.5	12	24.0
Negative	39	72.2	16	44.4		17	42.5	38	76.0
Positive

*P < 0.05.