Table 1 Baseline characteristics of the patients

Age (years)

64.1 ± 14.9

63.6 ± 15.7

64.0 ± 15.0

63.8 ± 14.9

65.1 ± 14.0

62.0 ± 15.1

0.567

Male (%)

62.8

61.6

61.8

58.6

68.6

72.9*

0.072

Weight (kg)

61.8 ± 13.3

61.6 ± 12.9

61.8 ± 13.0

60.3 ± 12.5

63.3 ± 13.2

66.0 ± 17.1^†

0.046

Septic AKI (%)

47

41.7

45.2

58.2^‡

54.0*

53.2*

< 0.001

0.069

 MICU

51.7

47.8

51.1

58.6^‡

57.4^†

 SICU

19.1

21.2

19.4

11.8

18.1

 CPICU

12.7

17.2

14.6

4.3

6.4

 EICU

16.3

13.2

14.8

24.7

18.1

 DICU

0.3

0.5

0.1

0.5

0

Inotropics use (%)

48.9

49.9

46.8

52.2

48.9

51.7

0.892

Mechanical ventilator (%)

79.4

72.2

80.5^‡

86.0^‡

85.6^‡

88.1^‡

< 0.001

< 0.001

 Intrajugular

37.6

43.3

36.2*

33.3*

35.1

 Femoral

52.2

48.3

53.6

53.8

52.7

 Others

10.1

8.3

10.2

12.9

12.2

Blood flow rate (ml/min)

110.9 ± 24.5

110.0 ± 25.2

111.4 ± 25.6

113.8 ± 25.7

112.7 ± 24.2

110.1 ± 23.8

0.986

Target dose (ml/kg/hr)

42.2 ± 15.2

41.3 ± 15.2

41.3 ± 14.7

43.6 ± 14.4

42.3 ± 13.3

41.8 ± 14.1

0.988

Target UF (ml/d)

0 (0–500)

0 (0–500)

0 (0–1000)

0 (0–500)^†

0 (0–500)

0 (0–500)^‡

< 0.001

Bicarbonate use (ample/d)

0 (0–4)

0 (0–0)

0 (0–4)^‡

4 (0–8)^‡

4 (0–8)^‡

4 (0–8)^‡

< 0.001

Anuria (%)

27.9

23.3

24.9

38.3^†

37.6^†

35.5*

0.002

CCI score

3.3 ± 2.3

3.2 ± 2.2

3.4 ± 2.3

3.4 ± 2.4

3.5 ± 2.5

3.1 ± 2.3

0.849

SOFA score

11.9 ± 3.7

11.1 ± 3.6

11.9 ± 3.5^‡

12.2 ± 3.7^‡

13.0 ± 3.1^‡

13.2 ± 3.4^‡

< 0.001

APACHE II score

26.2 ± 7.8

23.6 ± 6.8

25.5 ± 7.3^‡

28.8 ± 8.1^‡

29.1 ± 7.0^‡

30.9 ± 6.7^‡

< 0.001