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

From: Rare variants in the ATMgene and risk of breast cancer

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