Rare variants in the ATMgene and risk of breast cancer

Breast Cancer Research

Table 1 Numbers of cases and controls by center, after exclusions

Center	Number of cases (DCIS)	Average age at diagnosis	Number of controls	Reference age
Australia BCFR	820 (4)	46	320	45
Ontario BCFR	1,141 (21)	50	591	51
Northern California BCFR	266 (8)	48	377	48
kConFab/RCBB	343 (20)	46	160	46
Total	2,570 (53)	47.9	1,448	48.4

Reference age is defined as age at diagnosis for cases and age at enrollment for controls.
BCFR, Breast Cancer Family Registry; DCIS, ductal carcinoma in situ; kConFab, Kathleen Cuningham Foundation Consortium for Research into Familial Breast Cancer.

ISSN: 1465-542X