From: Evolutionary aspects of non-metastatic breast cancer after primary treatment in a sub-Saharan African setting: a 16-year retrospective review at the Douala general hospital, Cameroon
Interval
Frequency
Percentage
0–12
109
41.9
13–24
64
24.6
25–36
26
10.0
37–48
18
6.9
49–60
17
6.5
>60
Total
260
100