Table 1. Association between miR-27a protein expression and clinicopathological features of patients with BC.

Clinicopathological feature	Case	miR-27a protein expression	P
Age of onset			0.337
≤ 55 years old	217	2.056 ± 0.710
> 55 years old	179	2.126 ± 0.735
Menstruation condition			0.450
Premenopausal	211	2.062 ± 0.708
Postmenopausal	185	2.117 ± 0.737
Clinical stages			< 0.001
I stage	38	1.381 ± 0.093
II stage	235	1.817 ± 0.647
III stage	123	2.823 ± 0.192
Tumor size			< 0.001
≤ 2 cm	207	1.862 ± 0.246
> 2 cm	189	1.921 ± 0.240
Lymph node metastasis			< 0.001
Yes	186	2.808 ± 0.228
No	210	1.450 ± 0.259
Distant metastasis			< 0.001
Yes	118	2.857 ± 0.065
No	278	1.761 ± 0.618

Note: miR-27a, microRNA-27a; BC, breast cancer.