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Table 2 Demographic data of the cohort

From: Timing of dialysis in acute kidney injury using routinely collected data and dynamic treatment regimes

 

Complete cohort

KDIGO-AKI stage ≥ 2 cohort

KDIGO-AKI stage ≥ 2 cohort that received RRT (within 30-day follow-up)

KDIGO-AKI stage ≥ 2 cohort that did not receive RRT (within 30-day follow-up)

Number of patients

13,403

5622

471

5151

Age

60.8 ± 16.8

63.4 ± 15.3

64.0 ± 15.1

63.3 ± 15.4

Gender

62.2% male

65.3% male

62.2% male

65.5% male

SOFA score (at ICU admission)

7.0 ± 4.1

8.2 ± 4.2

11.4 ± 4.4

7.9 ± 4.1

Ventilated

91.4%

92.0%

95.1%

91.7%

Number of days of stay at ICU before AKI stage 2

1.05

0.66

1.09

% CKD*

16.3%

% Mortality before 30-day ICU£

12.7%

43.3%

9.9%

  1. £In the study, we consider 30-day ICU mortality counting from the time of AKI (stage 2) diagnosis; therefore, it is not defined for non-AKI cohort
  2. *Only mentioned in the overall cohort as the other groups do not contain patients with pre-existing CKD, as this is an exclusion criterion that we apply to define our population of interest