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Table 1 Demographics of Retrospective Cohort by type of Incident Vascular Access

From: A mixed-methods investigation of incident Hemodialysis access in a safety-net population

 

Total

n = 241

AVF/AV Graft

n = 29 (12.1%)

Central Venous Catheter (CVC)

n = 212 (87.9%)

p value for association with access typea

Age, mean (SD)

52.4 (12.2)

52.6 (11.6)

52.4 (12.4)

0.94

Female sex, %

38.2

37.9

38.2

>0.99

Race/Ethnicity, %

   

0.83

 white

19.5

13.8

20.3

 black

29.5

27.6

29.7

 Hispanic

28.6

31.0

28.3

 Asian

17.4

24.1

16.5

 other/unknown

5.0

3.4

5.2

Limited English proficiency, %

24.1

31.0

23.0

0.36

Comorbidity prevalence, %

 congestive heart failure

20.8

20.7

20.8

>0.99

 hypertension

86.7

93.1

85.8

0.39

 COPDb

6.2

3.4

6.6

>0.99

 peripheral vascular disease

3.3

6.9

2.8

0.25

 amputation

1.7

3.4

1.4

0.40

 diabetes mellitus

44.4

31.0

46.2

0.16

 drug abuse

28.2

24.1

28.8

0.67

 cancer

2.5

3.4

2.4

0.54

Body mass index, mean (SD)

27.5 (7.9)

29.2 (9.6)

27.2 (7.7)

0.20

Etiology of renal failure, %

   

0.48

 diabetes mellitus

34.4

31.0

34.9

 hypertension

12.5

17.2

11.8

 glomerulonephritis

17.0

24.1

16.0

 other

36.1

27.6

37.3

Income quintile, mean (SD)

2.27 (1.2)

2.24 (1.1)

2.28 (1.2)

0.87

Insurance status, %

   

0.02*

 Medicaid

38.6

55.2

36.3

 Medicare

9.5

10.3

9.4

 Medicare and Medi-Cal

2.9

6.9

2.4

 other

7.1

10.3

6.6

 none

41.9

17.2

45.2

Duration of nephrology care, %

   

<0.001*

 none - 6 months

60.6

20.7

66.0

 6–12 months

17.0

20.7

16.5

  > 12 months

22.4

58.6

17.6

Period of HD initiationc, %

   

0.045*

 Pre August, 2012

41.9

6.9

93.1

 Post August, 2012

58.1

15.7

84.3

  1. a p values obtained using Fisher’s exact test for categorical variables and t-test for continuous variables
  2. bCOPD = chronic obstructive pulmonary disease
  3. cDedicated vascular surgical services became available at ZSFG during August 2012
  4. *significant at p < 0.05