Table 3 Independent risk factors for hospital-acquired AKI by multivariable analysis

Stages 1 and 2: Pre-admission and admission factors

 CKD

2.42

1.05 - 5.58

0.0388

 Atrial fibrillation

0.36

0.15 - 0.88

0.0244

Stage 3: Pre-admission, admission factors and inpatient factors

 CKD

3.65

1.24 - 10.75

0.0191

 Atrial fibrillation

0.29

0.10 - 0.83

0.0209

 Mechanical ventilation

9.10

3.63 - 22.80

<0.0001

 Trough systolic blood pressure

0.95

0.93 - 0.98

0.0001

 Peak heart rate

1.03

1.01 - 1.05

0.0013

 Peak CRP per 10 units

1.04

1.00 - 1.07

0.0252

 Trough lymphocytes

0.28

0.08 - 0.96

0.0424