Table 3.

Risk variables (continuous) in patients with or without ARF that required dialysis

Risk Factor (Test Set: N = 15,838)ARF-Dialysis (Mean [SD])No ARF (Mean [SD])P Value
Age (yr)66.7 (12.1)63.6 (12.4)<0.001
Weight (kg)78.9 (18.9)81.0 (17.2)0.077
Preoperative creatinine (mg/dl)1.6 (0.9)1.1 (0.4)<0.001
Cardiopulmonary bypass time (minutes)149.7 (71.8)100.7 (50.1)<0.001