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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.