Figure 2.

Kaplan-Meier curves for survival (inhospital) by maximum RIFLE class. Patients discharged alive were censored. Log-rank statistic, P < 0.001. AKI, acute kidney injury; RIFLEmax, maximum Risk, Injury, Failure, Loss, and End-stage Kidney Disease (RIFLE) class during the intensive care unit stay (days).

Hoste et al. Critical Care 2006 10:R73   doi:10.1186/cc4915
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