Table 6

Patients with acute kidney injury classified by creatinine criteria or urine output criteria, or both criteria


Creatinine (%)
Urine output (%)
Creatinine + urine output (%)

RIFLE classification



     Risk
85.5
5.2
9.3
     Injury
68.5
6.8
24.7
     Failure
44.2
5
50.8
     Any category
64.1
5.6
30.3
AKIN classification



     Stage 1
87.1
3.6
9.3
     Stage 2
73.1
7.5
19.4
     Stage 3
42.5
4.7
52.8
     Any category
67.4
4.8
27.8

Lopes et al. Critical Care 2008 12:R110   doi:10.1186/cc6997