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Table 3 Outcomes among patients with and without acute kidney injury

From: Factors associated with acute kidney injury in acute respiratory distress syndrome

Outcomes

No AKI (113)

Stage I AKI (60)

Stage II AKI (66)

Stage III AKI (118)

p

Ventilator-free days to day 28, median (IQR), days

13 (0–20)

12 (0–18)

0 (0–14)a

0 (0–0)a, b

< 0.001

Duration of mechanical ventilation, median (IQR), days

11 (6–18.3)

12 (8–18.3)

12 (7–20.8)

13 (6–22.8)

0.43

ICU length of stay, median (IQR), days

12 (6.8–17)

13 (9–22)

13 (6.3–20.8)

13 (7–25)

0.58

Hospital length of stay, median (IQR), days

16 (10–24.3)

17 (12.8–26)

20 (11.5–26.8)

19 (8–29)

0.82

ICU mortality (%)

32 (28.6)

17 (28.3)

32 (48.5)

72 (61)a, b

< 0.001

Hospital mortality (%)

32 (28.6)

18 (30)

36 (54.5)a

73 (61.9)a, b

< 0.001

Day 28 mortality (%)

29 (25.7)

19 (31.7)

32 (48.5)a

65 (55.1)a, b

< 0.001

Day 90 mortality (%)

35 (31)

22 (36.7)

40 (60.6)a

73 (61.9)a, b

< 0.001

  1. AKI acute kidney injury, ICU intensive care unit, IQR interquartile range
  2. ap < 0.05 when compared with patients without AKI
  3. bp < 0.05 when compared with patients with stage I AKI