Table 2 Predictors of acute kidney injury by regression analysis

 Net fluid balance on the first ICU admission day

1.2

1.1,1.3

<0.001

 Net fluid balance on the 2nd ICU admission day

1.02

1.01,1.03

0.11

 Net fluid balance on the 3rd ICU admission day

1.02

1.01,1.03

0.027

 Percentage of fluid accumulation adjusted for body weight

1.01

1.004,1.018

0.002

 Age

1.02

1.01, 1.03

<0.001

 CHF

3.1

1.2, 7.9

0.013

 APACHE II scores

1.02

1.01, 1.04

0.011

 SAPS II scores

1.02

1.007, 1.03

0.002

 Admission MAP

0.98

0.96, 0.99

0.008

 Vasopressors at admission

2.5

1.5, 4.0

<0.001

 Vasopressors at 24 h

2.37

1.48, 3.7

<0.001

 Admission serum lactate

1.17

1.03, 1.33

0.014

 Colistin

2.52

1.52, 4.18

<0.001

 Net fluid balance on the first ICU admission day

1.02

1.01,1.03

0.003

 Percentage of fluid accumulation adjusted for body weight

1.009

1.001,1.017

0.02

 Vasopressors at 24 h

1.9

1.13,3.19

0.014

 Age

1.02

1.01,1.03

0.001

 Congestive Heart Failure

3.1

1.16,8.32

0.023

 Colistin

2.3

1.3, 4.02

<0.001