Table 2 Independent risk factors for community-acquired acute kidney injury by multivariable analysis

Stage 1: Pre-admission factors only

  Clinical frailty score

1.18

1.01 - 1.38

0.0333

  CKD

2.18

1.02 - 4.7

0.0448

  Diabetes

1.78

0.98 - 3.23

0.0597

Stage 2: Pre-admission and admission factors

  Clinical frailty score

1.19

1.01 - 1.41

0.0389

  CKD

2.36

1.06 - 5.26

0.0359

  Diabetes

2.15

1.14 - 4.05

0.0177

  Admission CRP per 10 units

1.04

1.01 - 1.07

0.0174

  Admission systolic blood pressure

0.98

0.96 - 0.995

0.0085

  Admission respiratory rate

1.05

1.01 - 1.10

0.0131