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Table 2 Characteristics of the tumours of breast cancer patients1.

From: Correlation of breast cancer risk factors with HER-2/neu protein overexpression according to menopausal and estrogen receptor status

Tumour characteristics HER-2/neu + n = 145 (%) HER-2/neu- n = 233 (%) p value
Age at interview    0.533
≤ 50 years 55 (40) 81 (60)  
>50 years 90 (37) 152 (63)  
Staging    0.106
I 30 (45) 36 (55)  
II 76 (35) 143 (65)  
III 20 (34) 39 (66)  
IV 2 (50) 2 (50)  
Unknown 17 (57) 13 (43)  
Tumour size    0.161
T1 55 (44) 71 (56)  
T2 65 (35) 121 (65)  
>T3 10 (29) 25 (71)  
Unknown 15 (48) 16 (52)  
Menopausal status    0.762
Pre/perimenopausal 52 (40) 80 (60)  
Postmenopausal 93 (38) 153 (62)  
Grading    0.577
I 7 (33) 14 (67)  
II 64 (36) 113 (64)  
III 60 (43) 80 (57)  
Unknown 14 (35) 26 (65)  
Node Status    0.119
Negative 55 (33) 112 (67)  
Positive 89 (43) 118 (57)  
Unknown 1 (25) 3 (75)  
Estrogen receptor status    0.108
Er+ 60 (33) 120 (67)  
Er - 85 (43) 112 (57)  
Unknown   1  
Progesterone receptor status    0.038
Pr+ 49 (49) 52 (51)  
Pr- 96 (35) 180 (65)  
Unknown   1  
  1. 1 Data for HER-2/neu status were missing for 6 of the 384 interviewed cases.