Table 3.

Predictors of % ECFV/TBW^a

Variable	Bivariate Regression Analysis			Multivariate Regression Analysis
	Slope (95% CI)	R2 (%)	P	Slope (95% CI)	R2 (%)	P
Modality CAPD (versus CCPD)	−0.07 (−1.73 to 1.59)	<0.1	0.931	0.71 (−0.44 to 1.86)	59.1	0.224
Age	0.16 (0.12 to 0.21)	24.8	<0.001	0.10 (0.06 to 0.14)		<0.001
Male gender	−0.77 (−2.41 to 0.88)	0.6	0.357
Weight	−0.06 (−0.11 to −0.01)	4.6	0.016
LBM	−0.18 (−0.23 to −0.13)	24.9	<0.001	−0.07 (−0.12 to −0.03)		0.001
Protein catabolic rate	−5.92 (−9.54 to −2.30)	6.4	0.002
Time on dialysis (mo)	1.29 (0.13 to 2.45)	3.0	0.030
Weekly Kt/V	−0.83 (−2.60 to 0.94)	0.6	0.356
Residual CrCl	−0.04 (−0.07 to −0.02)	7.1	0.001
Dialysate CrCl	0.11 ( 0.01 to 0.21)	3.1	0.029
Daily ultrafiltration, per 100 ml	−0.07 (−0.16 to 0.02)	1.5	0.127
Residual GFR	−0.41 (−0.63 to −0.19)	8.2	<0.001	−0.28 (−0.45 to −0.12)		<0.001
Daily dialysis prescription, per 1 L	0.22 (−0.34 to 0.77)	0.4	0.439
Daily urine volume	−0.23 (−0.36 to −0.09)	6.5	0.001
D/P creatinine	8.83 ( 0.44 to 17.22)	2.8	0.039	7.64 (1.36 to 13.9)		0.018
Daily urine Na	−0.04 (−0.07 to −0.01)	5.2	0.004
Daily dialysate Na	−0.02 (−0.10 to −0.05)	0.3	0.498
Albumin	−0.78 (−0.93 to −0.63)	40.1	<0.001	−0.49 (−0.64 to −0.34)		<0.001
Hemoglobin	−0.04 (−0.12 to 0.03)	0.9	0.250
Calcium (corrected for albumin)	3.79 (−1.10 to 8.68)	2.2	0.100
Phosphorus	−3.12 (−5.39 to −0.86)	4.6	0.007
Parathyroid hormone	−0.05 (−0.08 to −0.01)	4.7	0.007
Na	−0.53 (−0.78 to −0.29)	10.8	<0.001
CRP	0.10 (0.02 to 0.18)	4.3	0.016
Icodextrin use	0.40 (−1.32 to 2.12)	<0.1	0.649
Ischemic heart disease	1.71 (−0.27 to 3.70)	1.9	0.090
Congestive heart failure	3.73 (1.46 to 6.01)	6.4	0.001
Diabetes	1.49 (−0.13 to 3.12)	2.1	0.072
Hypertension	0.71 (−1.21 to 2.63)	0.3	0.465
Charlson comorbidity index	1.08 (0.78 to 1.38)	24.6	<0.001
Systolic BP	0.02 (−0.02 to 0.07)	<0.1	0.376
Diastolic BP	−0.10 (−0.17 to −0.02)	4.2	0.012
Antihypertensive medication use	−2.56 (−4.23 to −0.88)	5.7	0.003
Peripheral edema	1.11 (−0.59 to 2.80)	1.1	0.198

^aCI, confidence interval.