Role of circulating endothelial progenitors in responsiveness to erythropoiesis-stimulating agents in hemodialysis patients

Table 3 Variables predicting log CD133/Flk1+ EPC in multiple linear regression analysis

Independent variables	Unstandardized coefficients		Standardized coefficients	t	P value
Independent variables	B	SE	Beta	t	P value
Age	− 0.012	0.005	− 0.244	− 2.416	0.018
ERI	− 0.004	0.002	− 0.202	− 2.096	0.039
Male sex	0.217	0.108	0.186	2.012	0.047
CRP	− 0.026	0.018	− 0.139	− 1.433	0.155
SBP	0.003	0.002	0.132	1.391	0.167
HD vintage	− 0.009	0.007	− 0.129	− 1.343	0.182
Pulse rate	− 0.005	0.004	− 0.128	− 1.255	0.213

Age, male sex, HD vintage, CRP, SBP, pulse rate and ERI were incorporated as predicting variables into the model by forced entry mode, with log CD133/Flk1+ EPC as dependent variable. P values in bold indicate statistical significance
CRP, C-reactive protein; SBP, systolic blood pressure