Weight History, Smoking, Physical Activity and Breast Cancer Risk among French-Canadian Women Non-Carriers of More Frequent BRCA1/2 Mutations

Table 5

Matched cases and controls by relationship: 15 subjects.

Age of diagnosis of breast cancer cases (index cases)	Age of controls (relatives) at interview
Relationship
Sister-sister:
54	74
54	58
42	45
60	50
39	48
39	49
39	51
35	41
Sub total of subjects: 8
Aunt-niece
50	67
39	31
50	29
42	30
Sub total of subjects: 4
Mother-daughter
35	50
62	44
Sub total of subjects: 2
Grandmother-granddaughter
62	23
Sub total of subjects: 1
Grand total of subjects: 15