Table 4.

Multivariate analysis using the general linear model to assess the difference of influence on the SF-36 between one month and six months following peritoneal dialysis therapy

	Physical functioning			Role limitation –physical			Bodily pain			General health
	β	(CI)	P	β	(CI)	P	β	(CI)	p	β	(CI)	p
Age	-0.309	(-0.67-0.05)	0.09	-0.357	(-0.75-0.03)	0.07	-0.24	(-0.66-0.18)	0.262	-0.266	(-0.79-0.26)	0.32
Peritoneal Kt/V
<1.2	26.971	(3.81-50.14)	0.023	34.326	(9.21-59.44)	0.008	25.518	(-1.88-52.91)	0.067	30.703	(-3.53-64.94)	0.078
≧1.2	21.166	(1.64-40.70)	0.034	26.026	(4.85-47.20)	0.017	23.245	(-0.15-46.34)	0.049	33.373	(4.51-62.24)	0.024
Residual renal WCcr
<40	2.824	(-7.24-12.89)	0.578	-4.666	(-15.58-6.25)	0.397	-3.383	(-15.29-8.52)	0.573	10.481	(-4.40-25.36)	0.164
≧40	0	--		0	--		0	--		0	--
nPCR
<1.2	-5.645	(-16.25-4.96)	0.292	-3.325	(-14.82-8.17)	0.566	-0.083	(-12.62-12.46)	0.99	-9.164	(-24.83-6.51)	0.247
≧1.2	0	--		0	--		0	--		0	--
	Vitality			Social functioning			Role limitation- emotional			Mental health
	β	(CI)	p	β	(CI)	P	β	(CI)	P	β	(CI)	p
Age	-0.089	(-0.28-0.10)	0.346	0.107	(-0.42-0.63)	0.687	-0.154	(-0.55-0.24)	0.437	-0.142	(-0.37-0.08)	0.206
Peritoneal Kt/V
<1.2	11.974	(-0.21-24.16)	0.054	6.724	(-27.39-40.83)	0.695	19.574	(-5.92-45.07)	0.13	11.234	(-3.18-25.65)	0.125
≧1.2	9.276	(-1.0-19.55)	0.076	2.663	(-26.09-31.42)	0.854	15.297	(-6.20-36.79)	0.16	8.402	(-3.75-20.55)	0.172
Residual renal WCcr
<40	2.936	(-2.36-8.23)	0.273	13.906	(-0.92-28.73)	0.066	-0.775	(-11.86-10.31)	0.889	0.949	(-5.32-7.21)	0.763
≧40	0	--		0	--		0	--		0	--
nPCR
<1.2	-6.484	(-12.06- -0.91)	0.023	-13.46	(-29.07-2.15)	0.09	-6.162	(-17.83-5.51)	0.296	-2.398	(-9.0-4.20)	0.471
≧1.2	0	--		0	--		0	--		0	--

Multivariate analysis: