Table 1.

Summary characteristics for affected and unaffected carriers

Parameter	Total	Affected		Unaffected
		BRCA1	BRCA2	BRCA1	BRCA2
Number of carriers, n	789	248	209	218	114
Age at censoring, years (mean ± SD)	45.0 ± 11.3	42.9 ± 9.6	43.9 ± 9.3	46.8 ± 13.0	48.3 ± 13.0
Year of birth, n (%)
Before 1940	247	78 (31.5)	64 (30.6)	78 (35.8)	27 (23.7)
1940 to 1949	185	69 (27.8)	61 (29.2)	40 (18.3)	15 (13.2)
1950 to 1959	169	58 (23.4)	48 (23.0)	34 (15.6)	29 (25.4)
1960 and after	188	43 (17.3)	36 (17.2)	66 (30.3)	43 (37.7)
Censoring age, n (%)
<55 years	670	226 (91.1)	185 (88.5)	172 (78.9)	87 (76.3)
≥55 years	119	22 (8.9)	24 (11.5)	46 (21.1)	27 (23.7)
Oophorectomy before censoring age, n	45	5	7	25	8