Predictors of mortality in univariable and stepwise multivariable cox regression analysis
| Univariable | Stepwise multivariable | |||
| Variable | HR (CI) | p Value | HR (CI) | p Value |
| Age | 1.08 (1.02 to 1.13) | 0.005 | 1.08 (1.01 to 1.15) | 0.02 |
| Diabetes mellitus | 3.03 (1.06 to 8.64) | 0.04 | 3.48 (1.11 to 10.89) | 0.03 |
| Pain-to-balloon time | 1.01 (1.01 to 1.02) | 0.007 | – | – |
| TIMI flow grade after PPCI | 0.44 (0.28 to 0.71) | 0.001 | 0.61 (0.36 to 1.02) | 0.05 |
| LV ejection fraction (%) | 0.93 (0.90 to 0.97) | 0.001 | – | – |
| Late microvascular obstruction (% LV) | 1.49 (1.19 to 1.88) | 0.001 | – | – |
| Infarct size (% LV) | 1.06 (1.02 to 1.11) | 0.002 | – | – |
| Myocardial salvage index | 0.95 (0.92 to 0.98) | 0.001 | 0.93 (0.91 to 0.96) | 0.001 |
MSI was included as continuous variable in the model.
LV, left ventricle; PPCI, primary percutaneous coronary intervention; TIMI, Thrombolysis In Myocardial Infarction.