Table 4.

Determinants of peritoneal phosphate clearance, by linear regression

Variable	Univariate Analysis			Multivariate Analysis
	Standardized Beta	Regression Coefficient	P value	Standardized Beta	Regression Coefficient	P value
Age	0.14	0.10	0.103	0.02	0.01	0.835
Female gender	−0.13	−2.92	0.143	−0.13	−3.01	0.100
Diabetes	0.04	0.91	0.674	−0.08	−1.89	0.229
Time on PD	0.01	0.01	0.881	−0.10	−0.12	0.073
BMI	0.09	0.20	0.287	0.11	0.22	0.139
PCR	−0.06	−3.14	0.472	0.09	4.51	0.225
Serum albumin	−0.18	−0.46	0.042	−0.10	−0.26	0.168
GFR	−0.16	−0.59	0.063	−0.08	−0.29	0.330
Peritoneal membrane transport status
High	Reference			Reference
High-average	−0.46	−10.39	< 0.001	−0.25	−5.80	0.005
Low-average and low	−0.62	−16.42	< 0.001	−0.31	−8.27	0.003
Dialysate volume	0.09	0.24	0.306
PD modality
CAPD	Reference			Reference
CCPD	−0.11	−2.55	0.2	−0.30	−6.65	< 0.001
Ultrafiltration on PD	0.15	2.47	0.087	0.10	1.68	0.146
Peritoneal creatinine clearance	0.67	0.70	< 0.001	0.55	0.57	< 0.001
Peritoneal Kt/V	0.39	11.11	< 0.001	0.06	1.58	0.652