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Table 2 Patient characteristics by cost group

From: What are the short-term annual cost savings associated with kidney transplantation?

 

Low cost

(2.9%)

Medium cost

(51.8%)

High cost (45.3%)

P-value

Sex at birth

   

0.638

 Female

18.2%

31.4%

32.0%

 

 Male

81.2%

68.6%

68.0%

 

Charlson comorbidity index

  

 < 0.001

 No comorbidity (0)

4.9%

5.2%

 

 Mild (1–2)

72.7%

74.0%

55.7%

 

 Moderate (3–4)

27.3%

18.4%

24.7%

 

 Severe (≥ 5)

2.7%

14.4%

 

Dialysis type

   

0.459

 Hemodialysis

45.5%

54.7%

57.1%

 

 Peritoneal dialysis

36.4%

34.1%

32.6%

 

 Not on dialysis

18.2%

11.2%

10.3%

 

Blood type

   

0.711

 A

36.4%

38.1%

41.2%

 

 AB

4.9%

1.0%

 

 B

9.1%

12.1%

12.4%

 

 O

54.6%

44.8%

45.4%

 

Organ type

   

0.696

 Deceased donor

90.1%

81.6%

80.4%

 

 Live donor

9.1%

18.4%

19.6%

 

Transplant status

   

0.042

 Functioning graft

100%

94.2%

86.6%

 

 Graft failed

-

5.8%

13.4%

 

Age at transplantation

   

-

 Median (IQR)-years

60 (22)

51 (21)

57 (19)

 

 Mean (SD)

56.1 (13.4)

50.1 (13.9)

55.8 (13.1)

 

Number of years on dialysis

   

-

Median (IQR)-years

1.7 (1.5)

1.7 (2.3)

2.2 (2.3)

 

Mean (SD)

2.0 (0.4)

2.4 (0.2)

2.7 (0.3)

 
  1. We used a semi-parametric three-component finite mixture model to identify these data-driven cost groups based on patients' pre-transplantation annual inpatient costs. SD standard deviation, IQR interquartile range