Table 3.

Simple correlations and multiple models showing the associations between studied variables and the changes in eGFR values over the follow-up period (defined either as the follow-up to baseline eGFR ratio or as the difference between follow-up and baseline eGFR) and mean eGFR during the follow-up. The multiple models were adjusted for time from kidney transplantation.

Independent Variable	Dependent Variable
	Final/Baseline eGFR				Final—Baseline eGFR				eGFR Based on Mean Creatinine during Follow-Up
	Simple Correlation		Multiple Regression		Simple Correlation		Multiple Regression		Simple Correlation		Multiple Regression
	R	p	beta ± SE	p	R	p	beta ± SE	p	R	p	beta ± SE	p
Baseline eGFR	−0.09	0.3	−0.04 ± 0.11	0.7	−0.22	0.020	−0.13 ± 0.11	0.2	0.92	<0.001	0.98 ± 0.04	<0.001
log (uAlb)	−0.26	0.006	−0.08 ± 0.12	0.5	−0.16	0.08	−0.01 ± 0.11	0.9	−0.36	<0.001	0.04 ± 0.04	0.4
log (uACR)	−0.24	0.012	not included		−0.14	0.1	not included		−0.36	<0.001	not included
log (uNGAL)	−0.31	0.001	−0.22 ± 0.10	0.039	−0.32	0.001	−0.28 ± 0.10	0.006	−0.19	0.045	−0.11 ± 0.04	0.008
log (uNGAL/Cr)	−0.31	0.002	not included		−0.29	0.003	not included		−0.22	0.022	not included
log (uric acid)	0.21	0.028	0.15 ± 0.10	0.2	0.19	0.051	0.08 ± 0.10	0.4	−0.33	0.001	0.10 ± 0.04	0.014
Serum albumin	0.34	<0.001	0.24 ± 0.10	0.018	0.36	<0.001	0.29 ± 0.10	0.004	0.06	0.6	0.11 ± 0.04	0.007

eGFR, estimated glomerular filtration rate; uAlb, urinary albumin; uACR, urine albumin to creatinine ratio; uNGAL, urine neutrophil gelatinase-associated lipocalin; uNGAL/Cr, urine NGAL to creatinine ratio; SE, standard error.