Table 4 Univariate analysis of potential risk factors for operative mortality
Risk factors | Odds ratio | 95% CI | P value |
|---|---|---|---|
Female gender | 1.71 | 0.21–13.70 | 0.616 |
Age>70 | 5.11 | 1.73–15.11 | 0.003 |
Expected operative risk (by EuroSCORE II) (%) | 1.19 | 1.09–1.30 | <0.0001 |
Metabolic syndrome | 3.58 | 1.10–11.69 | 0.034 |
Obesity (BMI>25 kg/m2) | 2.17 | 0.71–6.60 | 0.174 |
Hypertension | 1.15 | 0.39–3.38 | 0.797 |
Diabetes mellitus | 2.49 | 0.86–7.22 | 0.092 |
HDL cholesterol (<1.04 mmol/L in men and<1.29 mmol/L in women) | 5.45 | 1.77–16.78 | 0.03 |
Triglycerides ≥1.69 mmol/L | 1.14 | 0.40–3.28 | 0.808 |
Fasting glycemia ≥6.1 mmol/L | 4.33 | 1.32–14.14 | 0.015 |
Previous percutaneous coronary intervention | 1.83 | 0.48–7.04 | 0.377 |
Smoking | 2.16 | 0.66–7.05 | 0.202 |
NYHA heart failure class (III/IV) | 6.00 | 1.83–19.68 | 0.003 |
Peripheral vascular disease | 2.88 | 0.73–11.41 | 0.133 |
Chronic obstructive pulmonary disease | 2.43 | 0.27–22.25 | 0.432 |
History of stroke | 5.42 | 1.48–19.83 | 0.011 |
Renal dysfunction (creatinine>150 μmol/L) | 7.59 | 1.98–29.18 | 0.003 |
Left main stenosis ≥50% | 2.19 | 0.75–6.35 | 0.15 |
3-vessel disease (≥75% stenosis) | 1.71 | 0.52–5.58 | 0.377 |
LV ejection fraction (%) | 0.94 | 0.87–1.02 | 0.166 |
LV diastolic dimension (mm) | 1.01 | 0.94–1.09 | 0.804 |
Pulmonary hypertension | 2.78 | 0.96–8.07 | 0.06 |
Mitral valve surgery | 2.88 | 0.73–11.41 | 0.133 |
Urgent/emergency surgery | 43.25 | 7.45–251.23 | <0.0001 |
On-pump bypass surgery | 4.33 | 1.46–12.85 | 0.008 |
IMA used as grafts | 0.7 | 0.18–2.64 | 0.597 |
Mitral valve insufficiency | 1.52 | 0.52–4.44 | 0.447 |
No. of distal anastomosis | 1.17 | 0.66–2.08 | 0.59 |