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Table 1 Preoperative clinical characteristics of all patients

From: Health-related quality of life after cardiac surgery – the effects of age, preoperative conditions and postoperative complications

  Age ≤70 years Age >70 years p
Variables No. Mean % No. Mean %  
Total 209   67.4 101   32.6  
Male 156   74.6 56   55.4 0.001
Age (years)   59.9    75.4   <0.001
Reoperation 11   5.3 4   4.0 0.617
Prior PCI 35   16.7 11   10.9 0.174
History of MI 31   14.8 12   12.9 0.771
Hypertension 126   60.3 80   79.2 0.001
Diabetes mellitus 53   25.4 38   37.6 0.026
Supraventricular arrhythmia 26   12.4 33   32.7 <0.001
COPD 27   12.9 8   7.9 0.192
Renal dysfunction 25   12.0 24   23.8 0.008
Cerebral vascular disease 15   7.2 14   13.9 0.058
History of CVA 10   4.8 11   10.9 0.045
PAD 8   3.8 4   4.0 0.100
Anemia 9   4.3 11   10.9 0.027
EuroSCORE   4.3    10.5   <0.001
LVEF (%)   59.6    60.9   0.372
Age of patients not included in the QoL assessment   61.1    76.3   <0.001
EuroSCORE of patients not included in the QoL assessment   3.8    11.2   <0.001
  1. No. – number, Reoperation – previous cardiac operation, PCI – percutaneous coronary intervention, MI – myocardial infarction, Diabetes mellitus – treated by subcutaneous insulin or by oral antidiabetics, Supraventricular arrhythmia – atrial fibrillation or atrial flutter, COPD – chronic obstructive pulmonary disease, Renal dysfunction – serum creatinine ≥ 120 umol/l, Cerebral vascular disease – stenosis of carotid artery >70%, CVA – cerebrovascular accident, PAD – peripheral artery disease, Anemia – serum hemoglobin < 12 g/dL (women) or < 13 g/dL (men), LVEF – left ventricular ejection fraction.