Table 1 Baseline characteristics of participants

Age (y)

60 ± 16

57 ± 15

72 ± 10

<0.001

Male (%)

49.8

47.8

59.5

0.20

Cardiovascular disease (%)

12.9

12.2

16.2

0.51

Cerebral vascular disease (%)

7.4

6.1

13.5

0.12

History of hypertension (%)

88.5

90.5

81.1

0.10

Diabetes mellitus (%)

27.6

24.4

43.2

0.02

Dialysis vintage (m)

46 ± 41

46 ± 41

47 ± 43

0.89

Hyperlipidemia (%)

57.1

58.1

54.1

0.65

SBP (mm Hg)

144.7 ± 19.3

144.5 ± 18.8

145.2 ± 21.7

0.86

DBP (mm Hg)

76.1 ± 11.4

77.3 ± 11.0

70.4 ± 11.5

0.001

PP (mm Hg)

68.5 ± 17.3

67.2 ± 17.0

74.8 ± 17.8

0.02

Calcium (mmol/L)

2.22 ± 0.23

2.21 ± 0.23

2.26 ± 0.25

0.25

 <2.10 (%)

31.5

32.4

27.0

 2.10-2.37 (%)

46.8

47.5

43.2

 >2.37 (%)

21.8

20.1

29.7

0.43

Phosphorus (mmol/L)

1.81 ± 0.59

1.81 ± 0.57

1.78 ± 0.64

0.78

 <1.13 mmol/L (%)

10.2

8.4

18.9

 1.13-1.78 mmol/L (%)

44.4

45.8

37.8

 >1.78 mmol/L (%)

45.4

45.8

43.2

0.15

PTH (pg/ml)

286(174–598)

301(185–603)

227.0(107–516)

0.20

<150 (%)

20.8

19.0

29.7

150-300 (%)

30.1

30.7

27.0

>300 (%)

49.1

50.3

43.2

0.34

ALP (U/L)

103.72 ± 58.35

101.85 ± 57.76

112.81 ± 61.13

0.30

Albumin (g/L)

40.0 ± 3.1

40.3 ± 2.8

38.3 ± 3.9

0.01

Kt/V

1.34 ± 0.34

1.36 ± 0.35

1.20 ± 0.22

0.01

Hb (g/L)

105.94 ± 20.81

105.68 ± 22.06

104.35 ± 21.82

0.74

Calcification score

2(0–3)

1(0–3)

4(2–6)

<0.001

Aorta calcification (%)

63.1

57.8

89.2

<0.001

Iliac artery calcification (%)

34.1

28.9

59.5

<0.001

Femoral artery calcification (%)

16.6

12.2

37.8

<0.001

Digital artery calcification (%)

7.8

5.6

18.9

0.01

Radial artery calcification (%)

19.8

17.8

29.7

0.10