Multivariable analysis confirmed CI-AKI as an independent predictor of NACE [ hazard ratio ( [ HR ) , 1.53 ; 95 % confidence interval ( CI ) , 1.23-1 .90 ; P = 0.0001 ] , MACE ( HR , 1.56 ; 95 % CI , 1.23-1 .98 ; P = 0.0002 ) , non-coronary artery bypass grafting major bleeding ( HR , 2.07 ; 95 % CI , 1.57-2 .73 ; P < 0.0001 ) , and mortality ( HR , 1.80 ; 95 % CI , 1.19-2 .73 ; P = 0.005 ) at 3-year follow-up .