Table 4 Bivariate analysis of factors associated with in-hospital death

Age (years)

61.6 ± 6.5

74.5 ± 3.5

0.0006

Age ≥ 70 years

2

11

0.0002

Obesity (BMI > 30 kg/m²)

4

7

0.43

Hypertension

9

9

1

Coronary artery disease

9

7

0.69

Diabetes mellitus

3

1

0.6

COPD

5

2

0.39

Immunosuppression

3

3

1

ASA Score

2.9 ± 0.76

3.5 ± 0.67

0.09

Possum Score

42 ± 44

46 ± 55

0.06

Preoperative severe sepsis

2

5

0.20

Creatinine (mg/L)

10.4 ± 4.6

20.1 ± 18.4

0.03

Creatinine ≥ 12 mg/L

3

9

0.02

C Reactive Protein (mg/L)

16.0 ± 26.0

126.5 ± 202.0

0.006

C Reactive Protein ≥ 50 mg/L

2

8

0.008

Emergent surgical procedure for anastomotic rupture

2

6

0.1

Mean duration of operation (minutes)

273 ± 70

266 ± 95

0.70

Mean duration of aortic clamping (minutes)

103 ± 39

136 ± 57

0.15

Suprarenal aortic clamping

2

4

0.36

Associated intestinal procedure

0

4

0.04

Number of packed red cells units

5.3 ± 1.2

6.1 ± 2.8

0.51

Volume of intra-operative colloid administration (ml)

961 ± 518

1083 ± 596

0.61

Volume of intra-operative crystalloid administration (ml)

4003 ± 924

3454 ± 1571

0.33

Use of vasopressor(s)

9

11

0.32

SAPS II on ICU admission

40.5 ± 8.2

54.7 ± 20.6

0.10

SOFA Score on ICU admission

6.5 ± 3.7

10.4 ± 3.9

0.05

Mechanical ventilation on ICU admission

12

11

1

Use of vasopressor(s) on ICU admission

5

8

0.12

Biological data on ICU admission

 Creatinine (mg/L)

11.2 ± 4.4

17.5 ± 16.2

0.25

 Lactate (mmol/L)

2.1 ± 0.7

4.0 ± 3.5

0.10

 C Reactive Protein (mg/L)

106.6 ± 74.0

142.3 ± 97.0

0.70

 PaO²/FiO² (mmHg)

365.3 ± 137.1

260.1 ± 160.7

0.10

Occurrence of medical complications during ICU stay

6

10

0.02

Occurrence of surgical complications during ICU stay

5

10

0.01

Renal replacement therapy during ICU stay

4

8

0.16