From: Estrogen receptor and HER2/neu status affect epigenetic differences of tumor-related genes in primary breast tumors
Clinical factors
HER2/neu negative
HER2/neu positive
P valuea
T stage
   T1
29
10
   T2/3
49
16
NS
N stage
   N0
50
15
   N1
28
14
Age (years)
50.2 ± 11.3
50.8 ± 12.6