From: Estimation of lifetime attributable risk incidence and mortality for breast cancer attributed to computed tomography of the head in the Niger Delta Region of Nigeria
Age group (years)
Centre G1
Centre G2
Total
20–29
7
6
13
30–39
9
16
40–49
11
20
50–59
5
15
60–69
14
25
70–79
3
18
21
80–89
10
47
78
125