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Table 1 Baseline characteristics of study population stratified by acute kidney injury requiring dialysis

From: Temporal trends of dialysis requiring acute kidney injury after orthotopic cardiac and liver transplant hospitalizations

 

Heart Transplant Without AKI-D (n=127367)

Heart Transplant With AKI-D (n=2776)

p

Liver Transplant Without AKI-D (n=261298)

Liver Transplant With AKI-D (n=5689)

p

Age Mean (SE)

58.2 (0.25)

60.7 (0.65)

<0.01

55.6 (0.16)

58.7 (0.38)

<0.01

 18–34

8.75

6.79

 

8.21

4.06

 

 35–49

12.46

8.75

 

15.69

11.21

 

 50–64

40.1

38.09

 

51.9

54.07

 

 ≥65

38.7

46.37

 

24.2

30.65

 

Gender

  

<0.01

  

<0.01

 Male

72.55

76.43

 

59.88

63.14

 

 Female

27.41

23.57

 

40.04

36.86

 

Race

  

0.05

  

<0.01

 White

63.34

66.19

 

61.73

60.62

 

 Black

11.38

11.96

 

6.53

8.1

 

 Hispanic

5.33

5.13

 

10.79

11.76

 

 Others

3.51

4.62

 

5.28

5.89

 

 Missing

16.44

12.1

 

15.67

13.63

 

Charlson Comorbidity Index

  

<0.01

  

<0.01

 0

27.43

12.56

 

34.77

12.33

 

 1

22.56

12.77

 

24.11

11.17

 

 2

50

74.67

 

41.11

76.49

 

Concurrent Diagnosis

      

 Diabetes Mellitus

41.04

37.09

<0.01

39.96

41.35

0.03

 Hypertension

63.96

74.18

<0.01

49.29

65.21

<0.01

 Chronic Kidney Disease

31.26

31.75

0.57

20.7

25.07

<0.01

 Acute or Chronic Liver Disease

3.42

13.22

<0.01

NA

NA

NA

 Liver or intrahepatic biliary Cancer

0.09

0

0.111

6.97

3.94

<0.01

 Sepsis

6.33

31.25

<0.01

7

27.52

<0.01

 Acute Myocardial Infarction

0.68

1.37

<0.01

1.66

3.84

<0.01

 Primary Acute Heart Failure

2.92

3.28

0.2684

1.94

4.68

<0.001

 Cardiac catheterizations

4.73

2.26

<0.01

2.77

2.47

0.1707

 Mechanical ventilation

4.73

2.26

<0.01

2.8

22.51

<0.01

Zip code Income (%)

  

<0.01

  

<0.01

 0-25 percentile

22.01

19.27

 

22.72

23.67

 

 26-50 percentile

23.46

22.12

 

23.08

21.62

 

 51-75 percentile

23.7

26.76

 

23.87

25.11

 

 76-100 percentile

22.99

25.47

 

22.77

23.56

 

Primary Payer

  

<0.01

  

<0.01

 Medicare/Medicaid

68

73.47

 

59.5

61.61

 

 Private

28.54

25.33

 

36.53

34.87

 

 Uninsured/Self pay

3.33

1.19

 

3.81

3.52

 

Hospital Characteristics

Hospital bed size

  

<0.01

  

<0.01

 Small

5.27

3.07

 

7.67

6.43

 

 Medium

15.58

14.21

 

17.58

14.9

 

 Large

78.83

82.55

 

74.16

77.86

 

Hospital Location

  

<0.01

  

<0.01

 Rural

6.35

0.82

 

6.63

1.94

 

 Urban non teaching

21.35

21.96

 

24.08

22.5

 

 Urban teaching

71.97

77.06

 

68.68

74.75

 
  1. Both populations were compared utilizing chi-square test, Wilcoxon rank sum test and survey regression depending on the distributions of individual variables. ¥ Quartile classification of the estimated median household income of residents in the patient’s ZIP Code. These values are derived from ZIP Code-demographic data obtained from Claritas