Table 2 Hazard ratios for in-ICU AKI existence, in relation to mortality

Including patients without AKI (N = 400)

298

102

290

110

212

188

 No AKI (n = 69)

62

7

1

–

61

8

1

–

47

22

1

–

 AKI = 1 (n = 252)

192

60

1.68^a

0.74

3.82

188

64

1.54^a

0.71

3.34

139

113

1.00^a

0.61

1.63

 AKI ≥2 (n = 79)

44

35

2.73^a

1.15

6.51

41

38

2.57^a

1.13

5.83

26

53

1.61^a

0.93

2.77

  Linear p trend

0.006

0.005

0.021

Excluding patients without AKI (N = 331)

236

95

229

102

165

166

 AKI = 1 (n = 252)

192

60

1

–

188

64

1

–

139

113

1

–

 AKI ≥2 (n = 79)

44

35

2.48^b

1.47

4.19

41

38

2.54^b

1.55

4.16

26

53

1.97^b

1.36

2.84