Table 3.

Univariable regression analysis for the tubular biomarkers

Variable	Parameter
	u alpha1/creat			uNGAL			uAGE
	R-squared	Coef β	p	R-squared	Coef β	p	R-squared	Coef β	p
eGFR	0.178	-0.051	<0.001	0.074	-2.477	0.014	0.130	-0.602	0.001
Cystatin C	0.146	3.240	<0.001	0.101	262.687	0.004	0.110	38.515	0.002
pAGE	0.132	36.69	0.001	0.089	4.60	0.007	0.058	1.777	0.03
UACR	0.292	0.035	<0.001	0.282	3.398	<0.0001	0.177	0.378	<0.001
u alpha1/creat				0.542	0.112	<0.001	0.586	0.055	<0.001
uNGAL/creat							0.482	4.943	<0.0001

u alpha₁/creat: urinary alpha₁-microglobulin to creatinine ratio; uNGAL/creat: urinary neutrophil gelatinase-associated lipocalin to creatinine ratio; uAGE: urinary advanced glycation end-products; eGFR: estimated glomerular filtration rate; pAGE: plasma advanced glycation end-products; UACR: urinary albumin to creatinine ratio.