Patient characteristics
| Total population | Population >80 years | |||||
| Women | Men | P value | Women | Men | P value | |
| n=1041 | n=1130 | n=571 | n=435 | |||
| Age (years) | 79.5±9.5 | 76.4±10.2 | <0.001 | 85.8±3.7 | 85.5±3.6 | 0.256 |
| BMI | 27.3±5.9 | 27.5±4.7 | 0.563 | 26.1±5.0 | 26.2±3.9 | 0.607 |
| Comorbidities | ||||||
| Haematological disorder | 6.8 | 4.5 | 0.022 | 8.2 | 6.0 | 0.176 |
| Liver disease | 1.5 | 2.9 | 0.024 | 0.9 | 1.4 | 0.543 |
| Extra-arterial pathology | 10.0 | 12.3 | 0.093 | 10.6 | 11.3 | 0.712 |
| Renal impairment* | 31.7 | 23.3 | <0.001 | 42.9 | 34.2 | 0.009 |
| Diabetes requiring insulin | 8.2 | 8.8 | 0.633 | 5.6 | 6.2 | 0.696 |
| COPD | 10.3 | 12.4 | 0.128 | 9.2 | 15.2 | 0.003 |
| Pulmonary hypertension† | 8.6 | 8.4 | 0.854 | 10.6 | 10.6 | 1.000 |
| Endocarditis | 0.5 | 0.5 | 0.872 | 0.4 | 0.5 | 1.000 |
| Cardiac history | ||||||
| Recent MI | 3.1 | 2.9 | 0.824 | 3.9 | 3.5 | 0.729 |
| LVEF <30% | 1.3 | 4.9 | <0.001 | 1.3 | 7.3 | <0.001 |
| Previous cardiac surgery | 4.7 | 9.4 | <0.001 | 4.0 | 9.7 | <0.001 |
| Critical preoperative status | 7.0 | 4.2 | 0.003 | 8.5 | 3.9 | 0.004 |
| Frailty (severe) | 6.0 | 4.3 | 0.067 | 8.5 | 7.5 | 0.583 |
| Logistic EuroSCORE I (%) | 16.5±13.5 | 14.7±14.2 | 0.056 | 21.9±14.4 | 20.4±15.5 | 0.305 |
| EuroSCORE II (%) | 4.5±5.3 | 3.6±4.7 | 0.001 | 5.6±6.0 | 4.7±5.1 | 0.023 |
Values are reported as mean with SDs or as percentage.
*Defined as creatinine clearance <50 mL/min or dialysis.
†Defined as pulmonary systolic pressure >55 mm Hg.
BMI, body mass index; COPD, chronic obstructive pulmonary disease; LVEF, left ventricular ejection fraction; MI, myocardial infarction.