Table 5.

Linear Regression Models for Each of the HRQL Dimensions

Dimension	Model Variables	Regression Coefficient	Coefficient of Determination
SF12	Serum albumin	10.2	35.0%
Karnofsky Index	0.9
Disease burden	Karnofsky Index	0.5	5.4%
Symptoms	Heart attack/revascularization	−8.3	23.9%
	Refusal to use a fistula	7.4
	Number of cohabitants	−0.8
Serum albumin	12.6
Kidney disease	Karnofsky Index	0.6	15.3%
Serum albumin	9.2