Table 3.

Dialysis-related parameters while on NPD or CAPD (n = 38)

Parameter	On NPD	On CAPD	P
24-h Kt/V
total	0.427 ± 0.101	0.358 ± 0.097	<0.001
peritoneala	0.289 ± 0.070	0.207 ± 0.071	<0.001
renalb	0.138 ± 0.062	0.151 ± 0.121	0.908
24-h CrCl (L)
total	9.20 ± 2.64	8.32 ± 2.01	0.024
peritoneala	4.87 ± 1.22	4.36 ± 1.16	0.069
renalb	4.33 ± 2.38	3.96 ± 2.51	0.233
Nightly Kt/V (time in bed), L
total	0.338 ± 0.078	0.118 ± 0.051	<0.001
peritonealc	0.289 ± 0.070	0.065 ± 0.023	<0.001
renald	0.049 ± 0.023	0.053 ± 0.043	0.523
Nightly CrCl (time in bed), L
total	6.42 ± 1.50	3.22 ± 1.20	<0.001
peritonealc	4.87 ± 1.22	1.84 ± 0.67	<0.001
renald	1.55 ± 0.89	1.38 ± 0.91	0.179
Net ultrafiltration (ml per night)	1,729 ± 799 (range, 170 to 3,053)	394 ± 315 (range, −100 to 1,050)	<0.001
Body weight (kg)
night before PSG	56.2 ± 9.8	56.8 ± 10.8	0.084
morning after PSG	54.1 ± 9.7	56.0 ± 10.6	<0.001
% change	−3.7 ± 1.7%	−1.4 ± 1.1%	<0.001
Peritoneal transport statuse
overall D/PCr at 4 h (n, %)	N/A	0.66 ± 0.093
low		0
low average		21 (55.2%)
high average		13 (34.2%)
high		4 (10.5%)

Data are presented as mean (± SD).

^aBased on overnight peritoneal effluent for NPD and 24-h effluent for CAPD.

^bBased on 24-h urine collection.

^cBased on overnight peritoneal effluent.

^dEstimation based on 24-h result × time in bed (h) /24 h.

^eAccording to the method of peritoneal equilibration test and classification of transport status by Twardowski (31).