Table 1.

Cumulative risk of breast cancer in Sweden, penetrance of BRCA1 and BRCA2 mutations based on the literature and life expectancy of Swedish women*

	Cumulative risk of breast cancer (%)			% alive
by age	all women	BRCA1 mutation carriers	BRCA2 mutation carriers
25	0.003	0.10	0.10	99.1
30	0.02	0.65	0.70	98.8
35	0.09	4.26	2.47	98.4
40	0.31	11.57	6.20	97.7
45	0.85	23.59	10.37	96.5
50	1.74	38.31	16.18	94.3
55	2.95	45.96	23.05	90.5
60	4.26	53.51	30.55	85.9
65	5.59	59.38	38.61	80.5
69	6.48	62.73	42.25	77.3

*[12]; see Patients and methods for details