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Table 1 Baseline demographic and clinical characteristics of PD patients stratified by average baPWV level

From: Neutrophil-lymphocyte ratio is associated with arterial stiffness in patients with peritoneal dialysis

Variables

PWV

Low

(n = 58)

High

(n = 43)

T/u/x2

P-value

Age (year)

48.60 ± 14.20

63.60 ± 12.65

−5.49

<0.01*

Gender (male, %)

30(51.72)

30(69.76)

3.33

0.06

Body mass index (kg/m2)

21.16 ± 3.03

20.81 ± 2.83

0.59

0.55

Peritoneal dialysis duration (months)

  

−0.05

0.95

 Median

16.00

16.00

  

 Interquartile range

4.75,45.00

7.00,46.00

 

Diabetes (%)

6(10.34)

13(30.23)

6.39

0.01*

Etiology of ESRD

  

5.59

0.06

 Chronic glomerular nephritis (%)

44(75.86)

23(53.48)

  

 Diabetic kidney disease (%)

5(5.17)

8(18.60)

 

 Others(%)

9(15.51)

12(27.90)

 

current smoking status(%)

5(8.62)

6(13.95)

0.72

0.39

cardiovascular disease history(%)

3(5.17)

6(13.95)

2.34

0.12

MAP (mmHg)

105.17 ± 17.69

110.93 ± 17.24

−1.63

0.10

Net UF (ml/day)

  

−1.02

0.30

 Median

212.50

270.00

  

 Interquartile range

−50.00,712.50

70.00,720

 

Urine output (ml/day)

  

−1.32

0.18

 Median

600.00

500.00

  

 Interquartile range

200.00,1325.00

20.00,1000.00

 

Hemoglobin (g/L)

104.17 ± 24.25

97.12 ± 18.20

1.66

0.10

Albumin (g/L)

36.18 ± 4.84

31.09 ± 5.70

4.83

<0.01*

Total cholesterol (mmol/L)

5.18 ± 1.21

4.64 ± 1.26

2.18

0.03*

Triglycerides (mmol/L)

1.78 ± 0.95

1.59 ± 1.02

0.96

0.33

Calcium (mmol/L)

2.10 ± 0.24

2.01 ± 0.23

1.80

0.07

Phosphorus (mmol/L)

1.60 ± 0.37

1.37 ± 0.49

2.64

0.01*

Intact parathyroid hormone (pg/ml)

434.62 ± 328.77

298.26 ± 240.22

2.30

0.02*

rGFR (ml/min/1.73 m2)

5.67 ± 2.68

6.29 ± 2.96

−1.09

0.27

Kt/V

2.11 ± 0.46

1.95 ± 0.42

1.71

0.09

hsCRP(mg/dl)

  

−2.90

<0.01*

 Median

1.19

4.68

  

 Interquartile range

0.61,3.53

0.66,12.04

 

WBC (*10^3/mm3)

6.47 ± 1.71

6.42 ± 2.11

0.13

0.89

Neutrophil (*10^3/mm3)

4.32 ± 1.35

4.41 ± 1.71

−0.30

0.76

Lymphocyte(*10^3/mm3)

1.45 ± 0.43

1.24 ± 0.42

2.45

0.01*

NLR

3.17 ± 1.20

3.89 ± 1.92

−2.15

0.03*

baPWV(cm/s)

1506.21 ± 188.69

2284.45 ± 508.79

−9.55

<0.01*

  1. MAP mean arterial pressure, UF ultrafiltation, GFR glomerular filtration rate, hsCRP high-sensitive C-reactive protein, WBC white blood count, baPWV brachial-ankle pulse wave velocity, NLR neutrophil-lymphocyte ratio;*p < 0.05