Table 2.

Average daily peritoneal dialysis (PD) exchange volume, with average indices of dialysis adequacy and residual GFR among the three groups of patientsa

ParameterGroup I (n = 94)Group II (n = 58)Group III (n = 90)P
aData are expressed as mean (SD) and compared by use of one-way ANOVA unless specified otherwise.
bData are expressed as median (interquartile range) and compared by use of the Kruskal-Wallis test.
cP < 0.001, d P < 0.05, compared with group I by use of the Bonferroni post hoc test.
eP = NS, f P < 0.001, and g P < 0.05, group II versus group III, by use of Bonferroni post hoc analysis.
PD exchange (L/d)6.2 (0.9)7.1 (1.3)c6.6 (1.1)dg< 0.001
Total (PD and renal) wkly creatine clearance rate (L/wk per 1.73 m2)77 (26)49 (7)c48 (14)ce< 0.001
Total (PD and renal) wkly Kt/V2.19 (0.44)1.96 (0.23)c1.43 (0.20)cf< 0.001
Wkly PD Kt/V1.53 (0.30)1.94 (0.24)c1.31 (0.25)cf< 0.001
GFR (ml/min per 1.73 m2)b2.43 (1.48, 3.59)0 (0, 0.16)c0.17 (0, 1.26)cg< 0.001