From: Diabetic retinopathy among Brazilian Xavante Indians
Duration of DM
Total
Diabetic retinopathy
n
%
≤ 24 months
Microalbuminuria normal
40
0
Microalbuminuria abnormal
17
2
11.8
> 24 months
Papillary excavation 0.1–0.4
60
20
33.3
Papillary excavation 0.5–0.9
7
5
71.4