Table 2 Outcomes of the unmatched (a) and matched (b) groups

(a)

C group (n = 132)

NC group (n = 207)

P value

Deterioration of renal function, n (%)

45 (34.1)

89 (43.0)

0.10

 Cr elevation

24 (18.2)

40 (19.3)

0.79

 RRT induction

31 (23.5)

69 (33.3)

0.05

RRT after ICU discharge, n (%)

11 (8.1)

25 (11.9)

0.29

Chronic HD after hospital discharge, n (%)

0 (0.0)

7 (3.3)

0.05

Ventilator-free days (mean, SD)

16.2 ± 9.9

16.4 ± 10.6

0.85

ICU-free days (mean, SD)

16.7 ± 7.5

16.4 ± 8.2

0.74

7-day mortality, n (%)

4 (3.0)

13 (6.3)

0.21

28-day mortality, n (%)

9 (7.8)

29 (16.4)

0.03

90-day mortality, n (%)

19 (21.8)

43 (35.0)

0.04

(b)

C group (n = 100)

NC group (n = 100)

P value

Deterioration of renal function, n (%)

34 (34.0)

35 (35.0)

1.00

 Cr elevation

15 (15.0)

19 (19.0)

0.57

 RRT induction

26 (26.0)

23 (23.0)

0.74

RRT after ICU discharge, n (%)

7 (7.0.)

6 (6.0)

0.77

Chronic HD after hospital discharge, n (%)

0 (0.0)

2 (2.0)

0.50

Ventilator-free days (mean, SD)

16.0 ± 10.0

16.3 ± 10.8

0.84

ICU-free days (mean, SD)

16.9 ± 7.4

17.8 ± 7.6

0.38

7-day mortality, n (%)

3 (3.0)

6 (6.0)

0.50

28-day mortality, n (%)

8 (9.2)

12 (15.0)

0.25

90-day mortality, n (%)

17 (25.8)

17 (32.1)

0.45