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Table 1 :

From: Clinical evaluation of the new RIFLE criteria for acute renal failure

  RIFLE criteria C criteria only U criteria only
ICU occurrence (%)    
   No ARF 32.0* 60.8* 29.3*
   Risk 12.1 13.1 11.1
   Injury 26.5 10.6 31.8
   Failure 29.4 15.6 27.8
Hospital mortality (%)    
   No ARF 6.7** 6.7* 7.0**
   Risk 8.9 12.9 8.7
   Injury 11.1 23.8 10.9
   Failure 26.4 34.7 27.7
  1. *P < 0.01, **P < 0.01, not for R vs I.