Table 2 Patient and perioperative characteristics

Age (years)

64

72.7 (7.9)

75.6 (6.2)

70.0 (8.5)

Male:female

64

61:3

29:2

32:1

Body mass index (kg m⁻²)

62

28.2 (5.0)

28.0 (4.6)

28.4 (5.4)

ASA-PS

64

 2

11

1

10

 3

47

26

21

 4

6

4

2

Revised cardiac risk index (Lee et al. 1999)

64

 1

26

12

14

 2

30

16

14

 3

8

3

5

Estimated glomerular filtration rate (Levey et al. 1999) (ml min⁻¹)

64

76.7 (21.5)

75.9 (22.8)

77.6 (20.6)

Size of AAA (cm)

64

6.7 (1.3)

6.4 (1.2)

7.1 (1.4)

Duration of procedure (h)

57

3.2 [2.2–5.4]

2.5 [2.0–3.6]

4.0 [3.0–6.3]

Aortic cross-clamp time (h)

28

1.1 [0.8–1.8]

n/a

1.1 [0.9–1.8]

Estimated blood loss (L)

44

1.2 [0.5–3.8]

0.5 [0.3–0.6]

2 [1.2–4.6]

Type of anaesthetic

64

 General

45

12

33

 Spinal

4

4

0

 Epidural

32

2

30

 Combined spinal-epidural

14

14

0

In-hospital mortality

64

1

0

1

Postoperative LOS (days)

64

6 [4–11]

4 [3–6]

9 [6–13]

Critical care LOS (days)

64

2 [1–4]

1 [1–2]

4 [2–6]