Table 1.

The characteristics of the normals, patients with benign lesion and cancer.

	Breast cancer (n = 53)	Benign lesion (n = 40)	Normal (n = 38)	p-value
Age in year, mean (SD)	61.0 (13.3)	45.9 (10.5)	60.9 (11.6)	<0.0001
Race, n (%)				1.00
Caucasian	49	37	36
Non-Caucasian	4	3	2
Cancer stage
0	11
I	36
II	6
Cancer subtype
Invasive	42
In situ	11