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Table 1 Distribution of cases and controls by age, race or ethnicity, and study center

From: Rare key functional domain missense substitutions in MRE11A, RAD50, and NBNcontribute to breast cancer susceptibility: results from a Breast Cancer Family Registry case-control mutation-screening study

Distributions Cases, n (%) Controls, n (%)
Age range, yr  
  ≤30 108 (8.2%) 67 (6.0%)
  31-35 325 (24.8%) 172 (15.3%)
  36-40 436 (33.2%) 237 (21.1%)
  41-45 443 (33.8%) 203 (18.1%)
  46-50 0 (0.0%) 230 (20.5%)
  51-55 0 (0.0%) 212 (18.9%)
Total 1,312 (100.0%) 1,121 (100.0%)
Race or ethnicity  
  Caucasian 848 (64.6%) 967 (86.3%)
  East Asian 208 (15.9%) 71 (6.3%)
  Latina 158 (12.0%) 47 (4.2%)
  Recent African Ancestry 98 (7.5%) 36 (3.2%)
Total 1,312 (100.0%) 1,121 (100.0%)
Study center  
  BCFR-Australia 593 (45.2%) 522 (46.6%)
  BCFR-Canada 302 (23.0%) 463 (41.3%)
  BCFR-Northern California 417 (31.8%) 136 (12.1%)
Total 1,312 (100.0%) 1,121 (100.0%)
  1. The three subjects excluded because of poor mutation-screening performance are not included; percentage data are the percentages of the total number of patient or control DNA in the category indicated that met the mutation-screening quality control criterion; BCFR, Breast Cancer Family Registry.