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Table 7 Mortality according to acute kidney injury stratified by the Risk, Injury, Failure, Loss of Kidney Function, End-stage Kidney Disease (RIFLE) and the Acute Kidney Injury Network (AKIN) definition/classification schemes

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%

None

8.5%

Risk

30.9%

Stage 1

30.7%

Injury

32.8%

Stage 2

32.8%

Failure

55%

Stage 3

53.5%

Any category

41.3%

Any stage

39.8%