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Table 1 Patient characteristics by type of vascular access

From: Prevalence and correlates of central venous catheter use among haemodialysis patients in the Irish health system - a national study

Variable

Mean (SD) or Frequency %

Overall

Arteriovenous Fistula

Central Venous Catheter

p-value

(n = 1196)

Vascular Access Type

 

45.7%

54.3%

 

Demographic Characteristic (%)

    

Age (year)

64.8 (15.1)

63.2 (15.2)

66.1 (14.9)

0.0009

Age Group

   

0.0138

  < 65

42.7

47.0

39.1

 

 65–74

26.5

25.8

27.1

 

 75+

30.8

27.2

33.7

 

Female

36.9

30.0

42.7

< 0.0001

Lifestyle Factor (%)

    

Body mass index (kg/m2)

27.3 (6.5)

27.6 (6.1)

27.1 (6.8)

0.1960

BMI Group

   

0.0315

  < 20

4.8

3.2

6.2

 

 20–25

34.8

33.0

36.5

 

 26–30

33.4

36.6

30.6

 

  > 30

26.9

27.2

26.7

 

Comorbid conditions (%)

 Hypertension

56.4

58.9

54.2

0.1212

 Diabetes mellitus

31.4

29.1

33.4

0.1191

 Atherosclerotic heart disease

18.6

18.1

19.1

0.7105

 Congestive heart disease

15.7

15.4

16

0.8130

 Other cardiac disease

15.7

15.4

16

0.8130

 Cerebrovascular disease

7.3

5.9

8.5

0.1033

 Peripheral vascular disease

5.7

5.9

5.5

0.9202

Primary Kidney Disease (%)

   

< 0.0001

 Glomerulonephritis

19.2

20.3

18.3

 

 Diabetes

18.6

18.5

18.8

 

 Hypertension

8.6

10.2

7.2

 

 Cystic kidney disease

6.4

9.5

3.7

 

 Other urologic

9.4

9.5

9.4

 

 Other cause

9.5

9.5

9.6

 

 Unknown/missing

28.2

22.5

33.0

 

Laboratory values (mean (SD))

 Albumin (g/L)

36.8 (4.4)

37.5 (3.9)

36.3 (4.7)

< 0.0001

 Calcium (mmol/L)

2.3 (0.2)

2.3 (0.2)

2.2 (0.2)

0.0025

 Phosphorous (mmol/L)

1.6 (0.4)

1.6 (0.4)

1.5 (0.4)

0.3880

 Pre-dialysis creatinine (μmol/L)

731.1 (243.7)

776.8 (236.2)

692.8 (243.5)

< 0.0001

Dialysis Vintage (%)

   

< 0.0001

  < 1 year

15.6

9.7

20.7

 

 1–4 years

42.6

43.5

41.9

 

  > 4 years

41.7

46.8

37.4

 
  1. Percentage of missing data: Body mass index (and BMI group): 11.2%, Albumin 21.7%, Calcium 21.6%, Phosphorous 21.6%, Pre-dialysis creatinine 7.5%, Dialysis Vintage: 0.6%