Table 1 Clinical characteristics of the peritoneal dialysis patients

Follow-up time (months)

33.0 ± 18.8

33.9 ± 19.7

31.2 ± 16.7

0.299

Age (years)

59.8 ± 15.9

58.0 ± 17.0

63.4 ± 13.1

0.012

BMI (kg/m²)

23.56 ± 3.72

22.87 ± 3.69

24.90 ± 3.40

<0.001

Gender (male)

56.0 %

52.60 %

62.90 %

0.184

Cause of ESRD

0.311

Glomerulonephritis

59.9 %

61.3 %

57.1 %

Diabetes mellitus

29.5 %

24.8 %

38.6 %

Polycystic kidney

2.4 %

2.9 %

1.4 %

Hypertension

2.4 %

3.6 %

0 %

Others

5.8 %

7.3 %

2.9 %

Smoking

37.7 %

34.30 %

44.30 %

0.175

Diabetes mellitus

29.5 %

24.80 %

38.60 %

0.053

CVD before PD

3.9 %

5.1 %

1.4 %

0.195

PD duration before CAC (months)

1.08 (−0.26-7.10)

1.08 (−0.31-6.39)

1.18 (−0.16-10.87)

0.380

Baseline CaCS

13.8 (0–239.0)

0 (0–175.2)

71.4 (1.5-304.0)

0.001

Absolute CaCS

61.7 (0–370.6)

0 (0–115.5)

381.8 (103.0-907.4)

<0.001

nPCR (g/kg*d)

0.87 ± 0.16

0.88 ± 0.16

0.84 ± 0.14

0.107

Total protein (g/dL)

6.55 ± 0.53

6.56 ± 0.51

6.55 ± 0.58

0.931

Albumin (g/dL)

3.47 (3.25-3.70)

3.50 (3.28-3.75)

3.42 (3.22-3.59)

0.052

Cholesterol (mg/dL)

173 (157–197)

172 (154–197)

173 (159–197)

0.918

Triglycerides (mg/dL)

155 (114–209)

151 (113–210)

163 (122–209)

0.386

LDL (mg/dL)

95.0 ± 23.2

94.0 ± 23.7

96.8 ± 22.4

0.424

Lipoprotein a (mg/dL)

198 (125–324)

182 (110–319)

258 (168–325)

0.01

HDL (mg/dL)

37.1 (32.1-43.3)

38.3 (32.7-46.4)

36.5 (32.0-40.3)

0.03

Serum creatinine (mg/dL)

9.09 ± 3.26

8.68 ± 3.22

9.90 ± 3.22

0.011

Pro-BNP (pg/mL)

5094 ± 6592

4542 ± 5625

6188 ± 8121

0.106

Adjusted total Ccr (L/W)

63.6 (54.3-76.1)

56.6 (67.0-83.1)

58.0 (51.1-67.2)

<0.001

Adjusted PD Ccr (L/W)

40.0 ± 8.9

39.9 ± 8.9

40.2 ± 9.0

0.785

Adjusted residual Ccr (L/W)

29.0 ± 25.3

32.9 ± 27.1

21.2 ± 19.1

<0.001

Total Kt/V

2.03 ± 0.40

2.11 ± 0.42

1.89 ± 0.32

<0.001

PD Kt/V

1.48 ± 0.37

1.47 ± 0.38

1.49 ± 0.35

0.772

Residual Kt/V

0.45 (0.16-0.79)

0.55 (0.22-0.86)

0.32 (0.13-0.56)

0.002

D/P phosphate

0.59 ± 0.16

0.61 ± 0.18

0.55 ± 0.11

0.007

D/P calcium

0.58 (0.50-0.62)

0.58 (0.50-0.62)

0.58 (0.48-0.62)

0.58

Cp (mmol/d/1.732)

4.58 ± 1.77

4.39 ± 1.78

4.93 ± 1.71

0.069

Cca (mmol/d/1.732)

0.64 ± 0.61

0.59 ± 0.58

0.74 ± 0.66

0.132

D4/P phosphate

0.53 ± 0.12

0.54 ± 0.12

0.51 ± 0.13

0.161

iPTH (ng/dL)

297 (195–416)

286 (186–420)

323 (212–412)

0.329

Phosphorus (mg/dL)

4.72 ± 0.97

4.59 ± 0.98

4.99 ± 0.88

0.005

Adjusted calcium (mg/dL)

9.13 ± 0.67

9.15 ± 0.60

9.09 ± 0.79

0.51

Hemoglobin (g/L)

103.6 ± 13.1

105.1 ± 13.5

100.5 ± 11.8

0.015

hs-CRP (mg/dL)

0.19 (0.09-0.34)

0.15 (0.07-0.32)

0.24 (0.17-0.41)

0.001

CAPD

91.2 %

93.5 %

88.3 %

0.092

Calcium carbonate use

64.3 %

56.90 %

78.60 %

0.002

Calcitriol use

69.1 %

67.90 %

71.40 %

0.637

Lipid-lowering drug use

66.7 %

62.80 %

74.30 %

0.119