The Breast Cancer Family Registry: an infrastructure for cooperative multinational, interdisciplinary and translational studies of the genetic epidemiology of breast cancer

Table 3 Breast cancer status and sex of probands, by ascertainment source and recruitment site (1996–2003)

Source of proband ascertainment	San Francisco^a	Ontario	Melbourne and Sydney	New York	Philadelphia	Utah	Total
Population-based case probands							6126
Female, with first primary breast cancer	2038	2553	1141				5732
Female, with second breast cancer	199	91	0				290
Male	56	48	0				104
Population-based control probands							2990
Female	634	1711	645				2990
Clinic-based affected probands							1647
Female, with first primary breast cancer	0	333	177	574	241	54	1379
Female, with second breast cancer	0	27	15	152	34	20	248
Male	0	3	1	14	2	0	20
Clinic-based unaffected probands							1187
Female	0	0	179	386	489	109	1163
Male	0	0	2	8	14	0	24
Total probands	2927	4766	2160	1134	780	183	11,950
Female, with first primary breast cancer	2038	2886	1318	574	241	54	7111
Female, with second breast cancer	199	118	15	152	34	20	538
Female, without breast cancer	634	1711	824	386	489	109	4153
Male, with breast cancer	56	51	1	14	2	0	124
Male, without breast cancer	0	0	2	8	14	0	24

ISSN: 1465-542X