Figure 4From: Four hour creatinine clearance is better than plasma creatinine for monitoring renal function in critically ill patientsComparison of on entry plasma creatinine (pCr), urine output (UO), and creatinine clearance (CCl) in the entire cohort with: (i) AKI AKIN severity classes (No AKI, I, II or III) determined from on entry pCr and CCl and UO, (ii) Duration of AKI AKIN . Post-hoc *** P < 0.001, ** P < 0.01, * P < 0.05.Back to article page