Table 4.

Multivariable regression analysis for the tubular biomarkers

Parameter	Variable
		Coef β	p	95% CI	F	Prob>F	R-squared
u alpha1/creat	Constant	0.863	0.002	0.323 to 1.403	53.14	<0.0001	0.674
	eGFR	-0.025	0.003	-0.042 to -0.008
	uNGAL/creat	0.002	0.009	0.0006 to 0.004
	UACR	0.012	0.016	0.002 to 0.022
	uAGE	0.036	<0.0001	0.023 to 0.050
uNGAL/creat	Constant	6.405	<0.001	54.946 to 67.756	48.00	<0.0001	0.551
	eGFR	-0.285	0.001	-0.442 to -0.128
	u alpha1/creat	0.076	<0.001	0.148 to 0.404
	UACR	1.857	0.001	0.793 to 2.921
	uAGE	4.071	<0.0001	2.886 to 5.256
uAGE	Constant	82.222	<0.001	57.060 to 107.383	43.58	<0.0001	0.482
	eGFR	-0.578	<0.001	-0.894 to -0.263
	UACR	0.367	<0.001	0.198 to 0.537
	u alpha1/creat	2.348	<0.001	1.236 to 3.876
	uNGAL/creat	4.943	<0.0001	3.796 to 6.090

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; UACR: urinary albumin to creatinine ratio.