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. 2012 Sep 25;1:20. doi: 10.1186/2193-1801-1-20

Table 1.

Inclusion criteria for the probands

Group (n) Criteria Number of probands
EO (37) Onset of cancer ≤40 years 37
Ashk-FH (40) Onset of cancer ≤40 years with family history 12
Onset of cancer >40 years with family history 28
FH (57) Onset of cancer ≤40 years with family history 31
Onset of cancer >40 years with family history 26
Total 134

n: total number of probands per group. EO: Early onset; Ashk: Ashkenazi; FH: Family history, defined as: at least 2 members of 1st or 2nd degree with breast and/or ovarian cancer.