From: Acute kidney injury in intensive care unit patients: a comparison between the RIFLE and the Acute Kidney Injury Network classifications
RIFLE classification
AKIN classification
None
11%
8.5%
Risk
30.9%
Stage 1
30.7%
Injury
32.8%
Stage 2
Failure
55%
Stage 3
53.5%
Any category
41.3%
Any stage
39.8%