Table 2 Characteristics of African American participants by vascular access type

Age (years)

57.2 ± 13.0

60.8 ± 12.4

60.7 ± 9.6

0.41

Sex

0.07

   Female

13 (34.2)

26 (29.9)

4 (44.4)

   Male

25 (65.8)

18 (40.9)

5 (55.6)

Dialysis vintage (yrs)

4.9 ± 3.4

6.4 ± 4.5

6.1 ± 5.2

0.25

KT/V*

1.5 ± 0.4

1.4 ± 0.3

1.4 ± 0.2

0.49

Body mass index (kg/m2)

0.67

   Under (<18.5)

0 (0.0)

0 (0.0)

1 (11.1)

   Normal (18.5 to <25)

10 (28.6)

13 (30.9)

0 (0.0)

   Overweight (25 to <30)

13 (37.1)

18 (42.9)

6 (66.7)

   Obese (> = 30)

12 (34.3)

11 (26.2)

2 (22.2)

Smoking status

0.45

   Never

21 (55.3)

31 (70.5)

3 (33.3)

   Former

8 (21.0)

10 (22.7)

5 (55.6)

   Current

9 (23.7)

3 (6.8)

1 (11.1)

Activated vitamin D treatment

29 (76.3)

34 (77.3)

8 (88.9)

0.70

Comorbidities

   Diabetes

13 (34.2)

26 (59.1)

6 (66.7)

0.02

   Hypertension

37 (97.4)

44 (100.0)

8 (88.9)

0.48

   Stroke or TIA

2 (5.3)

11 (25.0)

3 (33.3)

0.03

   Congestive heart failure

10 (26.3)

10 (22.7)

1 (11.1)

0.62

   Peripheral arterial disease

4 (10.5)

8 (18.2)

2 (22.2)

0.60

   HIV or AIDS

0 (0.0)

1 (2.3)

2 (22.2)

<0.01

Laboratory tests

   25(OH)D level (ng/ml)

21.6 ± 11.3

16.7 ± 7.3

17.1 ± 9.7

0.05

   Calcium (mg/dl)

8.9 ± 0.8

8.7 ± 0.9

8.8 ± 1.1

0.65

   Phosphorus (mg/dl)

5.5 ± 2.2

5.1 ± 1.6

5.5 ± 2.7

0.63

   intact PTH (pg/dl)

401.6 ± 268.2

515.1 ± 693.0

624.4 ± 668.8

0.44

   Albumin (g/dl)

4.1 ± 0.4

6.1 ± 0.2

3.7 ± 0.2

0.63

   Alkaline Phosphatase (U/L)

115.4 ± 57.0

171.2 ± 146.6

120.9 ± 67.1

0.07

   Hemoglobin (g/l)

12.13 ± 1.1

12.1 ± 1.6

11.0 ± 1.6

0.04

   Total Cholesterol (mg/dl)

152.1 ± 31.2

153.7 ± 31.3

168.9 ± 46.4

0.42

   Triglycerides (mg/dl)

132.4 ± 68.5

136.3 ± 82.1

121.4 ± 77.5

0.88

   HDL cholesterol (mg/dl)

47.4 ± 20.5

48.6 ± 17.1

48.9 ± 27.2

0.96

   LDL cholesterol (mg/dl)

79.3 ± 28.7

75.4 ± 32.3

95.6 ± 41.4

0.27