Multiple stepwise logistic regression analysis of univariate predictors of hospital mortality:
Variable Odds ratio 95% confidence interval P value
EuroSCORE 1.1999 1.0854 to 1.3264 0.0004
Total hours of mechanical ventilation 1.0073 1.0040 to 1.0106 <0.0001
Cardiopulmonary bypass time 1.0038 1.0003 to 1.0074 0.036
Peak creatinine post-op (micromol/L) 1.0033 1.0007 to 1.0060 0.014
Intra-aortic balloon pump 7.2730 3.2704 to 16.1745 <0.0001
Cox-Proportional Hazards Regression analysis of independent predictors of hospital mortality:
Variable Hazards Ratio 95% confidence interval P value
EuroSCORE 1.1450 1.0089 to 1.2995 0.037
Peak creatinine post-op (micromol/L) 1.0049 1.0018 to 1.0080 0.002
Total hours of mechanical ventilation 1.0061 1.0028 to 1.0094 0.0003
Table 7: