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Table 5 Hospital mortality increases with severity of AKI using three scoring systems with patient numbers (percentage of individuals in each category) (Binomial 95% Confidence Intervals)

From: Incidence and consequence of acute kidney injury in unselected emergency admissions to a large acute UK hospital trust

RIFLE

AKIN

AKIB

Stage

Hospital mortality

Stage

Hospital mortality

Stage

Hospital mortality

No AKI

20 (3.6%)

No AKI

19 (3.4%)

No AKI

19 (3.3%)

(2.2 to 5.5)

 

(2.1 to 5.3)

 

(2.0 to 5.1)

Risk

7 (6.8%)

1

12 (10.3%)

1

5 (7.6%)

(2.8 to 13.5)

 

(5.5 to 17.4)

 

(2.5 to 16.8)

Injury

7 (14.6%)

2

5 (14.7%)

2

10 (16.9%)

(6.1 to 27.8)

 

(5.0 to 31.1)

 

(8.4 to 29.0)

Failure

5 (25.0%)

3

3 (14.3%)

3

5 (16.7%)

(8.7 to 49.1)

 

(3.0 to 36.3)

 

(5.6 to 34.7)

  1. Acute Dialysis Quality Initiative “RIFLE” criteria (risk, injury, failure, loss, End Stage Renal Disease), “AKIN” (Acute Kidney Injury Network), “AKIB” Acute Kidney Injury (Bonventre), MDRD eGFR (Modification of Diet in Renal Disease estimated Glomerular Filtration Rate.