Table 1 General clinical features

Gender (male/female)

76/38

38/19

Age (years)

50.1 ± 9.8

49.3 ± 12.7

Primary disease

 Chronic glomerulonephritis

33

63

 diabetic nephropathy

6

12

 Hypertensive renal damage

13

29

 Other diseases

5

10

 Dialysis age (month)

83.2 ± 30.4

79.2 ± 45.3

 Hemoglobin (g/l)

112.79 ± 15.61

112.99 ± 13.86

 Albumin (g/dl)

41.32 ± 2.05

41.35 ± 2.33

 Blood phosphorus (mmol/l)

2.16 ± 0.54

2.14 ± 0.58

 KT/V

1.35 ± 0.25

1.36 ± 0.22

 Cardiovascular complications

4

2