Identification of miRNA-Based Signature as a Novel Potential Prognostic Biomarker in Patients with Breast Cancer

Table 1

The clinicopathological parameters of the overall survival-related training and validation sets.

Parameter	Training set (%) ()	Validation set (%) ()	Fisher’s exact test ( value)	SMD
Sex			0.95	0.026
Male	9 (1.2)	3 (0.9)
Female	731 (98.8)	314 (99.1)
Age (year)			0.876	0.015
≤60	410 (45.4)	187 (56.2)
>60	330 (44.6)	139 (43.8)
Stage			0.828	0.085
I	128 (17.4)	50 (15.9)
II	412 (56.1)	184 (58.6)
III	169 (23.0)	72 (22.9)
IV	16 (2.2)	4 (1.3)
X	10 (1.4)	4 (1.3)

Note: 12 patients of the breast cancer cohort (overall survival) were male.