Table 1

Demographics of the breast cancer population

Variable
Number

Age, years (N = 23)

     <45
3
     45–55
8
     >55
12
Menopausal status (N = 23)

     Pre-/peri-menopausal
16
     Post-menopausal
7
Tumor size (cm) (N = 23)

     <2
12
     ≥2
11
Nodal status (N = 22)

     Negative
11
     Positive
11 (2 micrometasis)
     Unknown
1
Tumor grade (SBR) (N = 20)

     I
9
     II
9
     III
2
Histology (N = 20)

     Ductal
16
     Lobular
1
     Other
3
ER status (N = 22)

     Positive
6
     Negative
16
     Unknown
1
PR status (N = 22)

     Positive
8
     Negative
14
     Unknown
1
HER-2 status (N = 21)

Positive
20
Negative
1
Unknown
2

N = the number of specimens available for evaluation. ER, estrogen receptor; PR, progesterone receptor; SBR, Scarff, Blum, and Richardson.

Perkins et al. Breast Cancer Research 2006 8:R70   doi:10.1186/bcr1627