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Table 1 Demographic data

From: Impact of age on early outcome after coronary bypass graft surgery using minimized versus conventional extracorporeal circulation

Variable CECC MECC p-value
(n = 1,137) (n = 1,137)
Male gender [n; %] 995 (80.4) 995 (80.4) 1.00
Age [years] 67.3 ± 8.8 67.3 ± 8.8 1.00
Age group [n; %]    
 < 59 (group 1) 240 (19) 240 (19) 1.00
 60 – 69 (group 2) 440 (36) 440 (36)
 70 – 79 (group 3) 485 (39) 485 (39)
 > 80 (group 4) 72 (6) 72 (6)
Logistic EuroSCORE [%, 95% CI) 6.3 (5.8 to 6.6) 5.0 (4.6 to 5.3) < 0.001
Ejection fraction [%] 60 (47; 70) 63 (50; 70) < 0.001
Height [cm] 171 ± 8.5 171 ± 8 0.26
Weight [kg] 86 ± 16 82 ± 13 < 0.001
Atrial fibrillation [n; %] 75 (6.1) 44 (3.3) 0.002
COPD [n; %] 107 (8.6) 94 (7.4) 0.24
Active smoker [n; %] 387 (31) 355 (29) 0.35
Preoperative myocardial infarction [n; %] 564 (46) 627 (51) 0.01
Insulin-dependent diabetes mellitus [n; %] 148 (12) 138 (11) 0.57
Diabetic nephropathy [n; %] 52 (4.2) 47 (3.8) 0.68
Serum creatinine [mg × dL−1] 1 (0.8; 1.2) 0.9 (0.8; 1.1) 0.10
Estimated GFR [mL × min−1 × 1,73 m−2] 79 (62; 96) 82 (64; 100) 0.02
Estimated GFR < 60 mL × min−1 × 1,73 m−2 [n; %] 297 (24) 243 (20) 0.01
Indication for surgery [n; %]    < 0.001
 Elective 674 (55) 588 (48)  
 Urgent 368 (30) 496 (40)  
 Emergency 195 (16) 153 (12)  
Second cardiac operation [n; %] 91 (7.4) 14 (1.1) < 0.001