. 2011 Feb;6(2):319–325. doi: 10.2215/CJN.05290610

Table 2.

Correlation analysis and the multivariable analysis between CCRR, URR, and CRR, and other variables

Variable 1	Variable 2	Variable 3	Correlation Coefficients	P
CCRR	Sp Kt/V		0.212^a	0.447
CCRR	URR		0.390^a	0.151
CCRR	CRR		0.363^a	0.184
CCRR	LP/kg		0.678^a	0.006
CCRR	UF		−0.724^a	0.002
UUR	Sp Kt/V		0.770^a	<0.001
URR	LP/kg		0.650^a	0.009
URR	UF		0.029^a	0.920
CRR	Sp Kt/V		0.727^a	0.002
CRR	LP/kg		0.641^a	0.010
CRR	UF		−0.024^a	0.933
Pre-CysC	Std Kt/V		−0.377^a	0.166
Pre-CysC	TSH		−0.196^a	0.485
Pre-CysC	CRP		0.339^a	0.216
CCRR	UF	LP/kg	0.811^b	<0.001
URR	UF	LP/Kg	0.359^b	0.072
CRR	UF	LP/kg	0.327^b	0.067

Pearon correlation coeffecient (r).

Correlation coefficient (r²).