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Table 1 Unadjusted pre- and operative baseline data

From: Reduced 30-day mortality in men after elective coronary artery bypass surgery with minimized extracorporeal circulation-a propensity score analysis

Variable CECC
(n = 2,020)
MECC
(n = 1,119)
p-value
Age [years] 65.5 ± 8.7 66.1 ± 8.8 0.05*
Age group [n;%]    
< 59 469 (23) 250 (22) 0.06
60-69 821 (41) 435 (39)  
70-79 688 (34) 393 (35)  
> 80 42 (2) 41 (4)  
Logistic EuroSCORE [%, 95% CI)A 3.2 (3.0 to 3.4) 3.2 (3.0 to 3.4) 0.16
No of distal anastomoses [n] 3 (3; 4)
Range (1-8)
3 (3; 4)
Range (1-6)
< 0.001*
Use of LIMA [%] 88.3 93.6 < 0.001*
Bypass time [min] 95 ± 31 84 ± 26 < 0.001*
Aortic cross clamp time [min] 57 ± 19 51 ± 17 < 0.001*
Reperfusion time [min] 34 ± 12 28 ± 12 < 0.001*
Ejection fraction [%] 62 (49; 70) 63 (50; 70) 0.12
Body mass index [kg × m-2] 28.4 ± 3.8 28.2 ± 3.5 0.65*
Body surface area [m2] 1.97 ± 0.16 1.95 ± 0.14 < 0.001*
Hemoglobin [mg × dL-1] 13.0 ± 1.5 13.1 ± 1.5 0.02*
Leukocytes [n × 10-9 L] 7.9 (6.7; 9.3) 7.7 (6.6; 9.2) 0.16
Thrombocytes [n × 10-9 L] 251 (210; 290) 248 (206; 292) 0.06
Arterial hypertension [%] 74.4 79.9 < 0.001*
COPD [%] 8.6 9.0 0.69
Atrial fibrillation [%] 3.8 3.3 0.48
Peripheral vascular disease [%] 6.9 6.0 0.32
Insulin-dependent diabetes [%] 27.5 28.8 0.45
Serum creatinine [mg × dL-1] 1 (0.9; 1.2) 1 (0.9; 1.1) 0.15
Estimated GFRB < 60 mL × min-1 × 1,73 m-2 [%] 16.4 18.4 0.14
  1. A CI confidence interval
  2. B GFR glomerular filtration rate