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Table 1 Summary of families by group

From: Genome-wide search for breast cancer linkage in large Icelandic non-BRCA1/2 families

  Number of families  
Group Total Number of cases of BC Cases with age at onset < 50 y Number of genotyped individuals (affected)
   4 5 6+ < 4 4+  
Iceland* 9 (12) 0 (1) 2 (6) 7 (5) 6 (10) 3 (2) 102 (60)
Lund/Oslo 3    3 1 2 31 (14)
Helsinki 7 1 4 2 5 2 56 (31)
Oulu 3 1 1 1 3   20 (15)
Total 22 2 7 13 15 7 208 (119)
  1. * Except for the last column, numbers within parentheses refer to the number of families as processed in linkage calculations, in which three families were separated in two parts each due to large size (see Additional file 1, Figure S1).