Skip to main content

Table 4 Associated factors of peritoneal UA clearance in multiple linear regression in total, lower and higher mGFR patients, respectively

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

VariablesTotalLower mGFR groupaHigher mGFR group
β (95%CI)P valueβ (95%CI)P valueβ (95%CI)P value
mGFR (mL/min/1.73m2)− 0.08 (− 0.67, 0.18)0.26
Age (y)0.16 (0.02, 0.15)0.010.10(− 0.03, 0.13)0.230.24 (0.02, 0.26)0.02
Sex (M/F)−0.12 (− 3.35, 0.02)0.053− 0.14(− 3.97, 0.44)0.12−0.11(− 4.22,1.14)0.26
Using diuretics− 0.04 (− 3.04, 1.64)0.56− 0.007(− 3.04, 2.82)0.94−0.06(− 5.20,2.64)0.52
Albumin (g/dL)−0.15 (− 4.99, − 0.31)0.03−0.24(− 7.26, − 0.99)0.01−0.05(− 4.57,2.85)0.64
PD vintage (month)0.07 (−0.02, 0.05)0.360.17(−0.006, 0.06)0.10−0.13(− 0.31,0.09)0.28
BMI (kg/m2)−0.27 (− 0.87, − 0.33)<0.001−0.29(− 0.98, − 0.24)0.001−0.32(− 1.10,-0.22)0.004
Average glucose concentration of dialysate (0.1%)0.14 (−0.005, 0.87)0.050.19(−0.004, 0.88)0.0520.08(−0.70, 1.81)0.38
Higher peritoneal transport statusb0.29 (2.40, 6.18)<0.0010.24 (0.72, 5.88)0.010.32 (1.77,7.74)0.002
Dialysis dose (L/d)0.27 (1.10, 3.36)<0.0010.24 (0.26, 3.12)0.020.20(−0.34,4.51)0.09
  1. Abbreviations: BMI body mass index, CI confidence interval, mGFR measured glomerular filtration rate, PD peritoneal dialysis, UA uric acid
  2. aDid not adjust mGFR when analyzing in the higher(> 2.74 mL/min/1.73m2) or lower (≤ 2.74 mL/min/1.73m2) mGFR group, respectively
  3. bThe reference group was the lower (low average or low) peritoneal transporters