Table 3 Eight-variable risk index for AKD following hospitalization with AKI in the AKI derivation cohort.

From: Novel risk models to predict acute kidney disease and its outcomes in a Chinese hospitalized population with acute kidney injury

Predictors

Odds ratio (95% CI)

P value

Classification

Points

Age

1.758 (1.286–2.404)

 < 0.001

 < 65

0

 ≥ 65

2

Gender

0.545 (0.405–0.732)

 < 0.001

Woman

0

Man

1

Hepatorenal syndrome

8.205 (2.710–24.842)

 < 0.001

No

0

Yes

7

Organic kidney disease

  

No

0

2.175 (1.260–3.754)

0.005

ATN

2

6.262 (3.934–9.967)

 < 0.001

Except ATN

6

Oliguria or Anuria

3.104 (1.997–4.826)

 < 0.001

No

0

Yes

3

Respiratory failure

1.976 (1.281–3.049)

0.002

No

0

Yes

2

BUN

1.933 (1.414–2.642)

 < 0.001

 < 7.14

0

 ≥ 7.14

2

Acute kidney injury stage

1

–

Stage 1

0

3.289 (2.399–4.508)

 < 0.001

Stage 2

3

18.787 (12.813–27.546)

 < 0.001

Stage 3

7

Maximum points

   

32

  1. The formula of Model 1 is as follow: Score of AKI to AKD = the points of age + the points of gender + the points of hepatorenal syndrome + the points of organic kidney disease + the points of oliguria or anuria + the points of respiratory failure + the points of BUN + the points of acute kidney injury stage. The scoring criteria are as follow: 2 points for age ≥ 65 years old; 1 points for gender(man); 7 points for hepatorenal syndrome; 2 points for ATN and 6 points for organic kidney disease(except ATN); 3 points for oliguria or anuria; 2 points for respiratory failure; 2 points for BUN ≥ 7.14 mmol/l; 3 points for Acute kidney injury stage2 and 7 points for Acute kidney injury stage3.The total scores of each patient were calculated.
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