Table 1 Preoperative data

 Age (years)

56.1 ± 7.8

55.2 ± 7.1

0.34

56 ± 7.2

55.3 ± 7

0.48

 Male

119 (86.2%)

113 (82.5%)

0.39

85 (85%)

81 (81%)

0.58

 BMI (kg/m²)

30.9 (27.8–35.9%)

31.1 (27.7–33.6)

0.18

30.4 (28.4–36.4)

31.6 (27.7–34.1)

0.53

 BSA (m²)

2.03 (1.9–2.1)

1.96 (1.89–2.05)

0.07

2.03 (1.93–2.1)

1.97 (1.89–2.01)

0.15

 DM

75 (54.4%)

65 (47.8%)

0.28

54 (54%)

47 (47%)

0.36

 Hypercholesteremia

61 (46.2%)

56 (41.5%)

0.44

44 (44%)

40 (40%)

0.46

 Hypertension

87 (63%)

86 (63.2%)

0.97

63 (63%)

61 (61%)

0.87

 Hypothyroidism

3 (2.2%)

1 (0.8%)

0.62

2 (2%)

0

0.5

 Renal impairment

3 (2.2%)

1 (0.8%)

0.62

0

1 (1%)

> 0.99

 Respiratory disease

1 (0.7%)

4 (2.96%)

0.21

1 (1%)

2 (2%)

> 0.99

 CVD

2 (1.5%)

2 (1.5%)

> 0.99

1 (1%)

2 (2%)

> 0.99

 PVD

3 (2.3%)

4 (3%)

> 0.99

3 (3%)

2 (2%)

> 0.99

 HF (within 1 year)

3 (2.2%)

8 (6%)

0.13

3 (3%)

1 (1%)

0.63

Previous MI

0.93

0.39

 1 attack

41 (30.2%)

39 (29.55%)

27 (27%)

31 (31%)

 2 or more

12 (8.8%)

10 (7.6%)

10 (10%)

5 (5%)

Previous PCI

11 (8%)

12 (8.8%)

0.81

9 (9%)

(9%)

> 0.99

 Angina class

< 0.001

0.35

  I

0

2 (1.4%)

0

0

  II

14 (10.4%)

35 (25.9%)

14 (14%)

13 (13%)

  III

122 (88.4%)

86 (63.7%)

85 (85%)

81 (81%)

  IV

2 (1.5%)

12 (8.9%)

1 (1%)

6 (6%)

NYHA (III/IV)

120 (87%)

85 (62%)

< 0.001

84 (84%)

75 (75%)

0.15

 Creatinine (mg/dl)

1 (0.8–1.2)

0.9 (0.8–1.2)

0.38

1 (0.8–1.1)

0.9 (0.8–1.19)

0.89

 Bilirubin (mg/dl)

0.6 (0.4–0.7)

0.6 (0.4–0.9)

0.28

0.6 (0.4–0.9)

0.7 (0.4–0.9)

0.12

EF

> 0.99

> 0.99

 Good (> 50%)

100 (73.5%)

99 (73.9%)

73 (73%)

74 (74%)

 Fair (30–50%)

35 (25.7%)

34 (25.4%)

24 (24%)

23 (23%)

 Poor (< 30%)

1 (0.7%)

1 (0.8%)

1 (1%)

1 (1%)

IV nitrates

2 (1.5%)

1 (0.8%)

> 0.99

1 (1%)

1 (1%)

> 0.99