Table 5

Multivariate logistic regression analysis: risk factors for ICU mortality.

Variables
B
p
OR
95% CI

Admission post cardiac surgery
-0.567
0.000
0.567
0.47 to 0.69
RRT for AKI
-0.202
0.039
0.817
0.674 to 0.99
Age
0.024
0.000
1.025
1.02 to 1.03
SOFA score on admission to ICU
0.104
0.000
1.109
1.09 to 1.13
Pre-existing chronic diseases
0.499
0.000
1.647
1.49 to 1.82
Renal function




     No AKI




     AKI I
- 0.024
0.000
0.82
0.73 to 0.91
     AKI II
0.051
0.59
1.05
0.87 to 1.27
     AKI III
0.820
0.000
2.27
1.92 to 2.69
Admission after emergency surgery
0.846
0.000
2.329
1.997 to 2.72
Maximum number of failed organ systems in ICU
1.028
0.000
2.795
2.66 to 2.94
Ventilation
1.040
0.000
2.828
2.48 to 3.23
Non-surgical admission
1.273
0.000
3.572
3.12 to 4.09
Constant
-5.589
0.000
0.004


AKI = acute kidney injury; CI = confidence interval; ICU = intensive care unit; OR = odds ratio; RRT = renal replacement therapy; SOFA score = Sequential Organ Failure Assessment score.

Ostermann et al. Critical Care 2008 12:R144   doi:10.1186/cc7123