Blood group A B O AB P
NO. 85 28 35 12
  Age
>60
<60
  44(51.7%)
41(48.2%)
  15(53.5%)
13(46.4%)
  19(54.2%)
16(45.7%)
  7(58.3%)
5(41.6%)
0.24
Family history                  
Yes
No
  20(23.5%)
70(76.4%)
  6(21.4%)
22(78.5%)
  9(25.7%)
26(74.2%)
  3(25.0%)
9(75.0%)
0.45
Menopausal status   
 Premenopausal  
Postmenopausal 
  36(42.3%)
49(57.6%)
  13(46.4%)
15(53.5%)
  17(48.5%)
18(51.4%)
  5(41.6%)
7(58.3%)
0.16
Lymph node involvement
 Yes                    
No 
  52(61.1%)
33(38.8%)
  17(60.7%)
11(39.2%)
  22(62.8%)
13(37.1%)
  8(66.6%)
2(33.3%)
0.37
Tumor size
>3 
<3 
  47(55.2%)
38(44.7%)
  15(53.5%)
13(46.4%)
  18(51.4%)
17(48.5%)
  7(58.3%)
5(41.6%)
0.30
Tumor stage
I&II
III
  42(49.4%)
43(50.5%)
  13(53.5%)
15(46.4%)
  17(48.5%)
18(51.4%)
  5(41.6%)
7(58.3%)
0.19
ER status
   Positive
   Negative
  45(52.9%)
40(47.0%)
  17(60.7%)
11(39.2%)
  21(60.0%)
14(40.0%)
  7(58.3%)
5(41.6%)
0.32
PR status
 Positive
 Negative
  62(72.9)
23(27.0%)
  21(75.0%)
7(25.2%)
  28(80.0%)
7(20.0%)
  9(75.0%)
3(25.0%)
0.28
Table 2: Characterization of breast cancer patients by blood group.