Table 1:
Prevalence of predictors in the reference and the study sample
| Study sample | EuroSCORE | STS | |
|---|---|---|---|
| N | 380 | 19 030 | 188 912 |
| Age (mean+SD) | 58.7 | 62.5 | 64.6 |
| <60 years (%) | 54.2 | 33.2 | 30.1 |
| 60–64 years (%) | 16.1 | 17.8 | 14.1 |
| 65–69 years (%) | 15.5 | 20.7 | 18.4 |
| 70–74 years (%) | 9.2 | 17.9 | 18.3 |
| >75 years (%) | 5 | 9.6 | 19.1 |
| Female (%) | 15.8 | 27.8 | 30.9 |
| Chronic pulmonary disease (%) | 2.4 | 3.9 | 15.4 |
| Extra cardiac arteriopathy (%) | 0.5 | 11.3 | 19.0 |
| Neurological dysfunction (%) | 2.4 | 1.4 | 6.3 |
| Previous cardiac surgery (%) | 1.5 | 7.3 | 11.7 |
| Serum creatinine >200 mmol/L (%) | 3.2 | 1.8 | 2.1 |
| Active endocarditis (%) | 0 | 1.1 | 0.4 |
| Critical preoperative condition(%) | 38.7 | 4.1 | 9.0 |
| Unstable angina (%) | 50 | 8 | 21.7 |
| LEVF 30–50 (%) | 31.3 | 25.6 | 37.8 |
| LEVF <30 (%) | 16.8 | 5.8 | 5.2 |
| Recent myocardial infarct (%) | 0.6 | 9.7 | 20.9 |
| Pulmonary hypertension (%) | – | 2 | 5.7 |
| Emergency (%) | 12.4% | 4.9 | 8.6 |
| Other than isolated CABG (%) | – | 36.4 | 18.8 |
| Surgery on thoracic aorta (%) | – | 2.4 | 0.9 |
| Postinfarct septal rupture (%) | – | 0.2 | 0.2 |