From: Vav3 oncogene activates estrogen receptor and its overexpression may be involved in human breast cancer
Differentiation
Staining intensity
Intensity (>1)
Negative
1–2
3–4
Well to moderate
8
22
5
27/35
Poor
0
2
6
8/8
Normal breast tissue
0/8
Normal vs. tumor
p < 0.0001
Well to moderate vs poor differentiation
p > 0.05