Table 2 Distribution of ratio variables in groups of re-operation and perioperative death

2.90 ± 3.02

4.63 ± 2.80

0.005*

3.31 ± 2.88

4.98 ± 3.96

0.074

3.07 ± 3.21

7.31 ± 7.57

 < 0.001**

4.22 ± 5.21

10.11 ± 8.09

0.011*

2.82 ± 2.92

2.50 ± 2.30

0.636

2.72 ± 2.86

2.53 ± 1.46

0.748

3.83 ± 4.79

6.45 ± 8.27

0.147

3.59 ± 4.62

11.47 ± 10.17

 < 0.01**

12.57 ± 6.55

18.80 ± 8.65

 < 0.001**

14.89 ± 8.11

20.62 ± 7.24

0.016*