Table 5 Multivariate cox analysis with survival data

Administration of etomidate

1.1 (0.79-1.51)

0.602

Body mass index of more than 40 kg/m²

1.25 (0.76-2.01)

0.361

Age of more than 75 years

1.15 (0.83-1.59)

0.396

ASA score of 4 or 5

2.20 (1.55-3.15)

<0.001

APACHE II score of more than 25

1.11 (1.08-1.14)

<0.001

ICU stay of more than 3 days

0.54 (0.38-0.79)

0.001

Re-admission to the ICU

1.79 (1.21-2.64)

0.004

Renal failure, hemofiltration within ICU stay

11.99 (8.02-17.92)

<0.001