TABLE 4.
Comparison of modeled factors for operative mortality ranked by factor likelihood ratio
| Model 1: STS PROM ≤ 1.27%
|
Model 2: STS PROM > 1.27%
|
||||
|---|---|---|---|---|---|
| Modeled factor | Likelihood ratio | P value | Modeled factor | Likelihood ratio | P value |
| ASA (discharge) | 57.162 | .000 | ASA (discharge) | 282.740 | .000 |
| Beta-blockers (discharge) | 29.577 | .000 | Beta-blockers (discharge) | 133.420 | .000 |
| Heart failure | 20.166 | .000 | Lipid-lowering drug (discharge) | 60.160 | .000 |
| Lipid-lowering drug (discharge) | 17.655 | .000 | Patient age, y | 22.877 | .000 |
| Preoperative creatinine level | 12.034 | .001 | Heart failure | 15.296 | .000 |
| Cardiovascular disease | 11.206 | .001 | Surgeon volume | 12.792 | .000 |
| New York Heart Association functional class | 10.556 | .014 | Intra-aortic balloon pump | 11.652 | .001 |
| Patient age, y | 5.729 | .017 | Previous percutaneous coronary intervention | 9.197 | .002 |
| TV insufficiency | 5.272 | .261 | Cardiovascular disease | 6.626 | .010 |
| Surgeon volume | 4.512 | .034 | Beta-blockers (preoperative) | 6.442 | .011 |
| ADP inhibitors | 4.270 | .039 | Stroke | 5.456 | .019 |
| Beta-blockers (preoperative) | 3.177 | .075 | Diabetes mellitus control | 4.647 | .200 |
| Diabetes mellitus control | 2.986 | .394 | Timing of myocardial infarction | 3.826 | .575 |
| IMA use | 2.657 | .448 | TV insufficiency | 3.722 | .445 |
| AV insufficiency | 2.343 | .673 | Chronic lung disease | 3.679 | .298 |
| Chronic lung disease | 2.019 | .568 | ADP inhibitors | 3.578 | .059 |
| MV insufficiency | 1.941 | .747 | Peripheral artery disease | 3.355 | .067 |
| Race | 1.555 | .907 | Race | 2.931 | .711 |
| Number of diseased vessels | 1.104 | .576 | Immunosuppression | 1.946 | .163 |
| Previous percutaneous coronary intervention | 1.013 | .314 | Hemodialysis | 1.817 | .178 |
| Diabetes mellitus | .857 | .355 | MV insufficiency | 1.539 | .820 |
| Timing of myocardial infarction | .848 | .974 | New York Heart Association functional class | 1.424 | .700 |
| Stroke | .779 | .378 | AV stenosis | .827 | .363 |
| Height, cm | .767 | .381 | AV insufficiency | .747 | .945 |
| Peripheral artery disease | .411 | .521 | IMA use | .668 | .881 |
| Status | .406 | .816 | Cardiogenic shock | .406 | .524 |
| Intra-aortic balloon pump | .157 | .692 | Diabetes mellitus | .356 | .551 |
| Ejection fraction | .118 | .731 | Preoperative creatinine level | .243 | .622 |
| Weight, kg | .096 | .756 | Gender | .195 | .658 |
| Gender | .025 | .874 | Ejection fraction | .178 | .673 |
| Immunosuppression | .000 | .997 | Number of diseased vessels | .161 | .923 |
| Preoperative inotropes | .000 | .997 | Preoperative inotropes | .147 | .701 |
| AV stenosis | .000 | .998 | Height, cm | .126 | .723 |
| Resuscitation | .000 | .998 | Resuscitation | .054 | .816 |
| MV stenosis | .000 | .999 | MV stenosis | .039 | .843 |
| Previous myocardial infarction | .000 | .999 | Status | .037 | .982 |
| Hemodialysis | .000 | .999 | Weight, kg | .003 | .958 |
| Cardiogenic shock | .000 | 1.000 | Previous myocardial infarction | .000 | .999 |
STS PROM, Society of Thoracic Surgeons predicted risk of mortality; ASA, American Society of Anesthesiologists; TV, tricuspid valve; ADP, adenosine diphosphate; IMA, internal mammary artery; AV, aortic valve; MV, mitral valve.