Table 5.

Peritoneal urea, creatinine, and phosphate clearances according to peritoneal membrane phosphate transport status and PD modality, at 1 year of treatment

CAPDAPDP
Peritoneal Kt/V
    fast1.47 ± 0.31.99 ± 0.40.026a
    fast-average1.74 ± 0.511.56 ± 0.50.054
    slow-average1.66 ± 0.21.46 ± 0.40.242
    slow1.58 ± 0.31.44 ± 0.30.720
Peritoneal creatinine clearance
    fast49.6 ± 8.854.4 ± 12.80.249
    fast-average41.0 ± 14.242.3 ± 14.00.775
    slow-average41.1 ± 6.237.1 ± 11.50.968
    slow37.2 ± 5.131.8 ± 13.20.279
Peritoneal phosphate clearance
    fast46.9 ± 12.648.1 ± 13.00.755
    fast-average39.3 ± 10.439.6 ± 9.30.865
    slow-average35.9 ± 7.831.6 ± 6.60.006a
    slow33.9 ± 15.224.5 ± 9.00.049a
  • 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 comparisons between patients in CAPD versus APD using the t test if data were parametric and the Mann-Whitney U test if nonparametric.