Table 2 Patient baseline laboratory data for peritoneal dialysis

Haptoglobin

81.23 ± 18.41

81.02 ± 19.05

81.5 ± 17.55

− 0.376

0.707

Ferritin

290.04 ± 289.57

270.31 ± 263.08

316.78 ± 320.55

− 2.06

0.040

Serum iron

12.67 ± 7.58

12.72 ± 7.61

12.6 ± 7.55

0.210

0.834

Total iron binding capacity

44.17 ± 9.19

43.84 ± 8.82

44.66 ± 9.73

− 1.189

0.235

Transferrin saturation

29.35 ± 17.16

29.69 ± 16.89

28.85 ± 17.58

0.651

0.516

Serum calcium

1.93 ± 0.28

1.91 ± 0.29

1.95 ± 0.27

− 2.188

0.029

Serum phosphorus

2.03 ± 0.62

2.1 ± 0.62

1.94 ± 0.6

3.699

< 0.001

Intact parathormone

396.61 ± 257.89

420.99 ± 264.14

359.5 ± 243.89

3.190

0.001

Calcium-phosphorus product

4.15 ± 1.24

4.2 ± 1.2

4.09 ± 1.29

1.243

0.214

Alkaline phosphatase

92.63 ± 45.68

89.52 ± 42.86

97.27 ± 49.33

 − 2.149

0.032

Serum albumin

32.84 ± 5.61

33.79 ± 5.21

31.58 ± 5.88

5.707

< 0.001

Prealbumin

302.51 ± 88.02

309.74 ± 82.38

291.27 ± 95.2

2.692

0.007

Serum sodium

138.31 ± 4.01

138.5 ± 3.95

138.05 ± 4.07

1.615

0.107

Serum potassium

4.59 ± 0.87

4.59 ± 0.82

4.59 ± 0.94

− 0.028

0.978

Serum chloremia

104.88 ± 5.81

105.21 ± 5.74

104.44 ± 5.89

1.879

0.061

Carbon dioxide combining power

18.84 ± 4.67

18.72 ± 4.65

19.01 ± 4.7

− 0.882

0.378

Serum creatinine

891.45 ± 358.22

920.84 ± 359.19

852.24 ± 353.64

2.731

0.006

Serum urea nitrogen

28.48 ± 12.96

29.85 ± 13.92

26.66 ± 11.34

3.513

< 0.001

Uric acid

492.67 ± 139.6

502.99 ± 136.61

478.93 ± 142.52

2.455

0.014

β2 microglobulin

21.55 ± 8.74

22.67 ± 8.58

19.89 ± 8.72

3.669

< 0.001

eGFR

5.68 ± 2.31

5.47 ± 2.13

5.96 ± 2.5

− 3.036

0.002

Total cholesterol

4.15 ± 1.24

4.13 ± 1.25

4.18 ± 1.23

− 0.571

0.568

Triglyceride

1.54 ± 1.07

1.58 ± 1.08

1.49 ± 1.04

1.057

0.291

Lower blood lipids

2.52 ± 0.88

2.59 ± 0.87

2.43 ± 0.89

2.480

0.013

High-density lipoprotein

1.17 ± 0.52

1.16 ± 0.49

1.2 ± 0.56

− 0.942

0.347

Fasting blood glucose

5.07 ± 1.97

4.88 ± 1.46

5.33 ± 2.49

− 2.910

0.004

Glycosylated haemoglobin A1c

5.33 ± 0.9

5.21 ± 0.88

5.5 ± 0.9

− 3.168

0.002

B-type Natriuretic Peptide

2062.5 ± 4874.21

1834.29 ± 4537.45

2500.66 ± 5485.42

− 0.783

0.435

Troponin

0.07 ± 0.09

0.07 ± 0.08

0.08 ± 0.1

− 1.245

0.214

Creatine kinase Myoglobin

3.67 ± 6.79

3.57 ± 6.97

3.86 ± 6.44

− 0.466

0.642

Creatine kinase

279.14 ± 342.13

279.44 ± 337.61

278.58 ± 351.5

0.028

0.978

C-reactive protein

12.36 ± 27.05

9.25 ± 21.24

17.67 ± 34.2

− 3.367

0.001

Erythrocyte sedimentation rate

56.2 ± 38.08

54.69 ± 35.74

59.29 ± 42.46

− 0.994

0.321

Hepatitis B surface antigen

70 (8.4%)

40 (8.4%)

30 (8.4%)

< 0.001

0.998

Hepatitis C antigen

11 (1.3%)

4 (0.8%)

7 (1.9%)

1.202

0.273

Syphilis antibody

2 (0.2%)

1 (0.2%)

1 (0.2%)

< 0.001

1.000

Left ventricular end-diastolic dimensions

4.93 ± 3.76

4.81 ± 3.01

5.26 ± 5.38

− 0.879

0.380

Interventricular septal thickness

1.19 ± 0.76

1.16 ± 0.6

1.29 ± 1.11

− 1.256

0.210

Left ventricular posterior wall thickness

1.07 ± 0.16

1.07 ± 0.16

1.08 ± 0.17

− 0.516

0.606

Left ventricular mass

217.97 ± 70.66

215.91 ± 70.97

226.39 ± 69.49

−0.921

0.358

Left ventricular mass index

133.33 ± 40.04

132.18 ± 40.18

138.03 ± 39.53

− 0.906

0.366

Left ventricular ejection fraction

64.02 ± 7.07

64.87 ± 6.63

61.67 ± 7.76

3.331

0.001

Carotid artery plaque/N (%)

28 (3.3%)

16 (3.3%)

12 (3.3%)

< 0.001

0.998