Table 5.

Linear regression analysis

	Univariate model			Stepwise multivariate model
Predictors	Std β	(95% confidence interval)	P value	Std β	(95% confidence interval)	P value
dependent variable: Log(FGF23)
Sex (male = 1)	−0.02	(−0.17 - 0.12)	0.741
Age	0.21	(0.07 - 0.35)	0.004	0.16	(0.01 - 0.30)	0.034
eGFR	−0.21	(−0.35 - -0.07)	0.004	−0.16	(−0.34 - -0.02)	0.027
Log(UACR)	0.13	(−0.01 - 0.28)	0.077
Log(cCa)	0.24	(0.10 - 0.38)	0.001	0.21	(0.07 - 0.35)	0.003
Inorganic phosphate	0.23	(0.09 - 0.37)	0.002	0.19	(0.05 - 0.33)	0.007
Dependent variable: log(α-Klotho)
Sex (male = 1)	0.00	(−0.14 - 0.15)	0.955
Age	−0.14	(−0.28 - 0.01)	0.064
eGFR	0.24	(0.10 - 0.39)	0.001	0.24	(0.10 - 0.39)	0.001
Log(UACR)	−0.01	(−0.15- 0.14)	0.931
Log(cCa)	−0.03	(−0.18 - 0.12)	0.680
Inorganic phosphate	−0.05	(−0.19 - 0.10)	0.509