From: Composition of Uroliths seen in patients in Abuja, Nigeria: a single centre retrospective analysis of 155 stones
Variable
Number (n = 153)
Percentage
Age (years)
0–10
2
1.3
11–20
3
2.0
21–30
11
7.1
31–40
42
27.5
41–50
40
26.1
51–60
29
19.0
61–70
20
13.1
≥ 71
6
3.9
Sex
Male
100
65.4
Female
53
34.6