Table 2. The risk of breast cancer in different age groups.

	NF1 women		Finnish women
Age group	Risk (%)	95% CI	Risk (%)
20–29	0.55	0.00–1.62	0.03
30–39	4.74	1.48–7.89	0.34
40–49	3.92	0.77–6.96	1.50
50–59a	5.89	1.86–9.76	2.64
60–69a	4.18	0.09–8.11	2.88
70–79	3.99	0.00–9.26	2.44

Abbreviations: CI=confidence interval; NF1=neurofibromatosis 1.

^aWomen aged 50–69 years are routinely invited to mammography screening in Finland.