Table 7 Odds Ratio of AKI stages in predicting hospital mortality according to AKIN, RIFLE and KDIGO criteria.

From: Acute Kidney Injury Classification for Critically Ill Cirrhotic Patients: A Comparison of the KDIGO, AKIN and RIFLE Classifications

Score

n

Hospital mortality (%)

Beta coefficient

Standard error

Odds rations (95% CI)

p

AKIN

 No AKI

90

39

–

–

1 (reference)

–

 AKIN-1

15

53

0.097

0.950

1.101 (0.171–7.094)

0.919

 AKIN-2

40

68

1.275

0.438

3.580 (1.518–8.442)

0.004

 AKIN-3

97

85

2.188

0.386

8.922 (4.189–19.002)

<0.001

 Constant

–

–

−0.502

0.264

0.605

0.057

RIFLE

 No AKI

84

31

–

–

1 (reference)

–

 RIFLE-R

13

62

1.312

0.618

3.112 (1.105–12.470)

0.044

 RIFLE-I

40

70

1.689

0.420

5.413 (2.377–12.327)

<0.001

 RIFLE-F

105

86

2.644

0.367

14.075 (6.852–28.911)

<0.001

 Constant

–

–

−0.842

0.239

0.431

<0.001

KDIGO

 No AKI

79

28

–

–

1 (reference)

–

 KDIGO-1

16

63

1.153

0.592

3.167 (0.992–10.111)

0.042

 KDIGO-2

40

70

1.712

0.422

5.542 (2.422–12.677)

<0.001

 KDIGO-3

107

86

2.679

0.370

14.567 (7.057–30.070)

<0.001

 Constant

–

–

−0.865

0.243

0.421

<0.001

  1. Abbreviation: AKI, acute kidney injury, RIFLE, risk of renal failure, injury to kidney, failure of kidney function, loss of kidney function and end-stage renal failure; AKIN, acute kidney injury network; KDIGO, kidney disease improving global outcomes.
  2. Values in bold are statistically significant (P-value < 0.05).
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