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Table 2 The PD-related information of patients

From: Roles of peritoneal clearance and residual kidney removal in control of uric acid in patients on peritoneal dialysis

Variables

Total

(n = 180)

Lower peritoneal UA clearance

(n = 90)

Higher peritoneal UA clearance

(n = 90)

P value

Peritoneal UA clearance(L/week/1.73 m2)

40.2 ± 7.1

34.6 ± 3.5

45.8 ± 5.0

–

PD vintage (m)

1.6 (1.4–19.8)

1.5 (1.3–8.4)

2.3 (1.4–49.9)

0.01

Average dialysate glucose concentration (%)

1.5 (1.5–1.7)

1.5 (1.5–1.5)

1.5 (1.5–1.8)

< 0.001

Dialysis dose (L/d)

8.103 ± 0.843

7.939 ± 0.800

8.267 ± 0.859

0.006

DAPD (n, %)

12 (6.7)

4 (3.2)

8 (4.8)

0.37

Total Kt/V

2.3 ± 0.5

2.2 ± 0.4

2.4 ± 0.6

0.03

Residual renal Kt/V

0.7 ± 0.5

0.8 ± 0.4

0.6 ± 0.5

0.02

Peritoneal Kt/V

1.7 ± 0.3

1.5 ± 0.3

1.8 ± 0.3

< 0.001

CCL (L/week/1.73m2)

76.1 (60.4–93.1)

76.8 (63.2–94.7)

74.7 (59.0–91.5)

0.36

Residual renal CCL (L/week/1.73m2)

30.4 (10.4–49.8)

38.3 (20.4–56.1)

22.5 (1.5–44.0)

< 0.001

Peritoneal CCL (L/week/1.73m2)

46.1 (41.0–51.3)

41.3 (38.7–43.2)

50.9 (48.0–56.6)

< 0.001

mGFR (mL/min/1.73m2)

3.1 ± 2.4

3.8 ± 2.4

2.3 ± 2.3

< 0.001

Residual urine volume (L)

0.700 (0.300–1.200)

0.850 (0.550–1.225)

0.555 (0.050–1.100)

0.003

nPCR (g/kg/d)

0.889 (0.769–1.076)

0.856 (0.765–1.028)

0.934 (0.785–1.126)

0.05

PET category (%)

 High

15 (8.3)

1 (1.1)

14 (15.6)

0.001

 High average

107 (59.4)

47 (52.2)

60 (66.7)

0.07

 Low average

54 (30.0)

38 (42.2)

16 (17.8)

0.001

 Low

4 (2.2)

4 (4.4)

0 (0.0)

0.13

  1. Values are presented as means ± standard deviation or medians (interquartile range) for continuous variables and count (percentage) for categorical variables. Enrolled patients were divided into lower peritoneal UA clearance (≤39.8 L/week/1.73m2) and higher peritoneal UA clearance (> 39.8 L/week/1.73m2) group according to its median level
  2. Abbreviations: CCL creatinine clearance, DAPD Day Ambulatory Peritoneal Dialysis, mGFR measured glomerular filtration rate, nPCR normalized protein catabolic rate, PD peritoneal dialysis, PET peritoneal equilibration test, UA uric acid