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ABSTRACT: Rationale & objective
Evaluating repeated measures of estimated glomerular filtration rate (eGFR) and urinary protein-creatinine ratio (UPCR) over time may enhance our ability to understand the association between changes in kidney parameters and cardiovascular disease risk.Study design
Prospective cohort study.Setting & participants
Annual visit data from 2,438 participants in the Chronic Renal Insufficiency Cohort (CRIC).Exposures
Average and slope of eGFR and UPCR in time-updated, 1-year exposure windows.Outcomes
Incident heart failure, atherosclerotic cardiovascular disease events, death, and a composite of incident heart failure, atherosclerotic cardiovascular disease events, and death.Analytical approach
A landmark analysis, a dynamic approach to survival modeling that leverages longitudinal, iterative profiles of laboratory and clinical information to assess the time-updated 3-year risk of adverse cardiovascular outcomes.Results
Adjusting for baseline and time-updated covariates, every standard deviation lower mean eGFR (19mL/min/1.73m2) and declining slope of eGFR (8mL/min/1.73m2 per year) were independently associated with higher risks of heart failure (hazard ratios [HRs] of 1.82 [95% CI, 1.39-2.44] and 1.28 [95% CI, 1.12-1.45], respectively) and the composite outcome (HRs of 1.32 [95% CI, 1.11-1.54] and 1.11 [95% CI, 1.03-1.20], respectively). Every standard deviation higher mean UPCR (136mg/g) and increasing UPCR (240mg/g per year) were also independently associated with higher risks of heart failure (HRs of 1.58 [95% CI, 1.28-1.97] and 1.20 [95% CI, 1.10-1.29], respectively) and the composite outcome (HRs of 1.33 [95% CI, 1.17-1.50] and 1.12 [95% CI, 1.06-1.18], respectively).Limitations
Limited generalizability of annual eGFR and UPCR assessments; several biomarkers for cardiovascular disease risk were not available annually.Conclusions
Using the landmark approach to account for time-updated patterns of kidney function, average and slope of eGFR and proteinuria were independently associated with 3-year cardiovascular risk. Short-term changes in kidney function provide information about cardiovascular risk incremental to level of kidney function, representing possible opportunities for more effective management of patients with chronic kidney disease.
SUBMITTER: Cohen JB
PROVIDER: S-EPMC8627522 | biostudies-literature | 2022 Jan
REPOSITORIES: biostudies-literature

Cohen Jordana B JB Yang Wei W Li Liang L Zhang Xiaoming X Zheng Zihe Z Orlandi Paula P Bansal Nisha N Deo Rajat R Lash James P JP Rahman Mahboob M He Jiang J Shafi Tariq T Chen Jing J Cohen Debbie L DL Matsushita Kunihiro K Shlipak Michael G MG Wolf Myles M Go Alan S AS Feldman Harold I HI
American journal of kidney diseases : the official journal of the National Kidney Foundation 20210528 1
<h4>Rationale & objective</h4>Evaluating repeated measures of estimated glomerular filtration rate (eGFR) and urinary protein-creatinine ratio (UPCR) over time may enhance our ability to understand the association between changes in kidney parameters and cardiovascular disease risk.<h4>Study design</h4>Prospective cohort study.<h4>Setting & participants</h4>Annual visit data from 2,438 participants in the Chronic Renal Insufficiency Cohort (CRIC).<h4>Exposures</h4>Average and slope of eGFR and U ...[more]