Table 3. Phenotypical features of sporadic patients investigated (N=58).

	BRCA1 mutation-positive patients		BRCA2 mutation-positive patients		Mutation positive patients
	N	%	N	%	N	%
41 female breast cancer patients (mean Dx 33.5, median Dx 33, range 26–52)	2	4.9	1	2.4	3	7.3
Six patients with multiple primary breast cancers (bilateral or multifocal) (mean Dx first breast cancer 39.8, median Dx 39.5, range 31–50)	0	0	0	0	0	0
Five ovarian cancer patients (mean Dx 35.4, median Dx35, range 25–52)	0	0	0	0	0	0
Two patients with both primary breast and ovarian cancer (mean Dx breast cancer 52.5 (range 50–55); mean Dx ovarian cancer 50 (range 47–53)	1	50	0	0	1	50
Four male breast cancer patients (mean Dx 49.3, median Dx 58.5, range 12–68)	0	0	0	0	0	0
58 sporadic patients	3	5.2	1	1.7	4	6.9

Dx=age at diagnosis (years).