Table 5: Age at diagnosis and earliest age at diagnosis of family members for patients who had a family history of breast cancer
Risk category; age at diagnosis, yr	Earliest age at diagnosis of family members, yr	Affected family member(s)*
High (n = 10)
49	35	Sister, aunt (M)
52	42	Mother, aunt (M), aunt (M), aunt (M)
39	38	Sister, mother
34	40	Mother, aunt (M), grandmother (M)
54	40	Mother, aunt (M), grandmother (M)
46	30	Mother
55	40	Mother
40	47	Mother, aunt (M), aunt (M)
38	35	Mother, aunt (M)
42	38	Sister, sister, mother
Moderate (n = 4)
50	50	Aunt (M), aunt (M), aunt (M), cousin (M)
31†	55	Mother
41	42	Aunt (P), aunt (P), aunt (P), grandmother (P)
62	50	Mother, aunt (M)
Slightly increased (n = 3)
36	41	Aunt (P)
52	60	Aunt (P)
53	70	Grandmother
*M = maternal, P = paternal. †Exposure to radiation before 30 years of age for treatment of Hodgkin disease and family history.

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