1164 / 1173
Spontaneous cancer incidence risk
Follow-up period 5 years, in patients treated with radiotherapy at
different ages. Data from UK, England and Wales 1983-1987
Cancer risk within the next 5 years (%)
Age at treatment
(years)
Males
Fema l es
5 0
1 . 5
2 . 0
5 5
2 . 5
2 . 7
6 0
5 . 0
3 . 6
6 5
7 . 0
4 . 6
7 0
10.0
5 . 4
7 5
12.5
6 . 3