Table I.

Association between the miR-133a expression and clinicopathological characteristics in breast cancer.

Variables	N (n=78)	Low expression (n=47)	High expression (n=31)	P-value
Age (years)				1.00
≤50	35	21	14
>50	43	26	17
Tumor size				0.496
T1-T2	44	25	19
T3-T4	34	22	12
Grade				0.485
Well and moderately	49	28	21
Poor	29	19	10
Lymph node metastasis				0.038a
Present	58	39	19
Absent	20	8	12
Distant metastasis				0.0096b
Present	9	9	0
Absent	69	38	31
TNM stage				0.001b
I–II	50	23	27
III–IV	28	24	4

^aP-value <0.05

^bP-value <0.01.