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Table 5 Univariate analysis for prediction of mortality or dialysis

From: The urine output definition of acute kidney injury is too liberal

Variable Odds ratio (95% CI) P value
Age (years) 1.02 (1.01 to 1.03) 0.001
Body weight (kg) 0.98 (0.97 to 0.99) 0.005
APACHE II score 1.18 (1.14 to 1.22) <0.0001
SAPS II 1.08 (1.07 to 1.10) <0.0001
AKICr (yes or no) 3.00 (2.02 to 4.44) <0.0001
Vasopressor use (yes or no) 1.65 (1.11 to 2.43) 0.01
Hypotension, MAP <60 mmHg (yes or no) 1.25 (0.85 to 1.84) 0.26
Diuretic use (yes or no) 1.60 (0.67 to 3.86) 0.29
Fluid balance (percentage/body weight) 1.16 (1.11 to 1.22) <0.0001
Baseline creatinine (μmol/l) 1.005 (1.002 to 1.007 <0.0001
Urine output <0.5 ml/kg/hour (AKIUO) 2.50 (1.60 to 3.89) <0.0001
Urine output <0.3 ml/kg/hour (UO<0.3) 5.21 (3.48 to 7.80) <0.0001
  1. AKICr, acute kidney injury by the creatinine definition; AKIUO, acute kidney injury by the urine output definition; MAP, mean arterial pressure; SAPS, Simplified Acute Physiological Score; UO<0.3, urine output <0.3 ml/kg/hour averaged over 6 hours.