Table 4.

Correlations of peritoneal solute clearances with symptoms (n=28)

SoluteDSI Symptom ScoreaKCCQ Summary Scoreb
RhoP ValuecRhoP Valuec
Uread−0.0030.98−0.170.39
Creatinined0.050.80−0.290.14
Cinnamoylglycine0.110.56−0.310.10
Dimethyluric acid−0.020.93−0.110.56
Hippurate0.150.43−0.370.05
Indoxyl sulfate0.170.39−0.410.03
Isovalerylglycine−0.010.93−0.270.16
Kynurenic acid0.170.39−0.510.005
p-cresol sulfate0.310.11−0.530.003
Pyridoxic acid−0.090.63−0.100.61
Tiglylglycine−0.220.27−0.210.28
Xanthosine0.220.25−0.450.01
Composite secretion score (peritoneal)0.060.76−0.340.07
  • DSI, Dialysis Symptom Index; KCCQ, Kansas City Cardiomyopathy Questionnaire.

  • a Lower DSI scores indicate fewer uremic symptoms.

  • b Higher KCCQ scores indicate fewer dyspnea and fatigue symptoms.

  • c Raw P values are uncorrected for multiple comparisons.

  • d Urea and creatinine clearances are standardized to body surface area.