Table 4.

Summary of cases and controls series for French-Canadian BRCA1/2/PALB2 genotyping.

Characteristic	Cases	Controls
Dates of ascertainment	2000–2016	2009–2015
Ages at ascertainment (mean)	32–89 (60.7)	40–70 (53.2)
Ages of first invasive breast diagnosis (mean)	25–69 (52.7)*	–
Location of ascertainment	Montreal, QC	Montreal, QC
Ethnicity	French-Canadian†	French-Canadian‡
Personal history of cancer	At least one invasive breast cancer	None§
Family history of cancer	55% no, 27% yes, 19% unknown§	None§

*Intervals between ages at first invasive breast cancer and ascertainment range from 0 to 11 years (Mean = 0.67, S.D. = 5.36).

^†As determined by a review of last names.

^‡As determined by French first language, Canadian origin of all four grandparents, and a city of birth located in Quebec.

^§Self-reported data.