From: Renal impairment in a rural African antiretroviral programme
N
%
95% CI
0–29
29
1.3
0.8–1.8
30–59
287
13.1
11.6–14.5
60–89
1250
57.1
55.0–59.2
90 or more
623
28.4
26.6–30.3
2189