Table 2a.

Annual risks for skin cancer (all types) by age and gene

	BRCA1			BRCA2
Age group	Number of person years	Number of events	Annual risk (%)	Number of person years	Number of events	Annual risk (%)
20–29	1166	0	0	559	0	0
30–39	4218	8	0.2%	2331	4	0.2%
40–49	8318	30	0.4%	4652	21	0.5%
50–59	8594	49	0.6%	5985	37	0.6%
60–69	5174	23	0.4%	4316	25	0.6%
70–79	2042	23	1.1%	1910	10	0.5%