Characteristic

Cases (n = 57) a

Controls (n = 35) a

Age, years (mean ± SD)

49.6 ± 14.7

34.2 ± 12.6

Ethnicity, n (%)

 

 

       African American (blacks)

7 (12.3)

17 (48.6)

       European American

50 (87.7)

18 (51.4)

Stage of Breast Disease

 

 

        I

9 (15.8)

 

        II

26 (45.6)

 

        III

19 (33.3)

 

        IV

3 (5.26)

 

Menopause Status, n (%)

 

 

        Pre-menopausal

22 (38.6)

28 (80)

        Post-menopausal

35 (61.4)

7 (20)

aNumber of samples in each group/Total number of samples
Table 1: Selected characteristics of donors analyzed in this study.