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Table 2 Cumulative 30-day and 31-365 day mortality and corresponding hazard ratios (HRs) by AKI status

From: One-year mortality among Danish intensive care patients with acute kidney injury: a cohort study

 

Number of deaths

Number at period start

Cumulative mortality

% (95% CI)

Unadjusted HR

(95% CI)

Adjusted HRa

(95% CI)

0 to 30 days

     

   Without AKI

3,327

25,969

12.8% (12.4-13.2)

1(ref.)

1(ref.)

   AKI-risk

704

1,986

35.5% (33.4-37.6)

3.17 (2.93-3.45)

1.96 (1.80-2.13)

   AKI-injury

579

1,311

44.2% (41.5-46.9)

4.21 (3.86-4.60)

2.60 (2.38-2.85)

   AKI-failure

613

1,496

41.0% (38.5-43.5)

3.83 (3.52-4.18)

2.41 (2.21-2.64)

31 to 365 days

     

   Without AKI

2,421

22,642

10.7% (10.3-11.1)

1 (reference)

1 (reference)

   AKI-risk

263

1,282

20.5% (18.4-22.8)

2.04 (1.80-2.32)

1.33 (1.17-1.51)

   AKI-injury

174

732

23.8% (20.9-27.0)

2.46 (2.11-2.87)

1.60 (1.37-1.87)

   AKI-failure

205

883

23.2% (20.6-26.1)

2.38 (2.06-2.75)

1.64 (1.42-1.90)

  1. aAdjusted for age, gender, Charlson comorbidity index score, surgical status, and chronic kidney disease.
  2. AKI, acute kidney injury; CI, confidence interval; HR, hazard ratio; ICU, intensive care unit.