Table 4 Multivariable Cox Regression Analysis of Hazard Ratios for 60-Day Mortality
| Hazard Ratio | 95% CI | P value | |
|---|---|---|---|
| Allocation to anesthesia machine | 4.05 | 1.75–9.33 | 0.001 |
| Age at admission, per year | 1.08 | 1.02–1.13 | 0.004 |
| Bilirubin, per mg/dl | 1.45 | 1.11–1.90 | 0.007 |
| Creatinine, per mg/dl | 7.20 | 2.57–20.21 | < 0.001 |
| Diabetes Mellitus | 4.02 | 1.63–9.91 | 0.003 |