Table 4.

Solute clearances comparison across peritoneal membrane phosphate transport status, at 1 year of treatment

VariableFastFast-AverageSlow-AverageSlowP
Peritoneal urea Kt/V1.87 ± 0.51.63 ± 0.51.58 ± 0.41.51 ± 0.40.016a
Peritoneal creatinine clearance (L/wk per 1.73 m2)49.3 ± 12.241.8 ± 13.937.1 ± 8.834.3 ± 12.20.005a
Peritoneal phosphate clearance (L/wk per 1.73 m2)47.4 ± 12.639.4 ± 9.934.0 ± 7.631.4 ± 14.3<0.0001a
  • Values expressed as mean ± SD. Patients classified as slow, slow-average, fast-average. or fast transporters, according to mean ± SD of dialysate plasma phosphate ratio (D/P Ph) at a 4-hour, 3.86% glucose PET.

  • a P < 0.005 intergroup solute clearances comparison across the four transport groups using one-way ANOVA if data were parametric and Kruskal-Wallis test if nonparametric.