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Background: Chronic kidney disease (CKD) is associated with incident cognitive impairment (ICI) and disproportionately affects older adults and Black persons.

Objective: To determine (1) whether age or race differences exist in the association of CKD and ICI and (2) whether cognitive trajectories differ in people with and without CKD.

Design: Nationwide cohort study.

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Introduction: We intended to compare the predictive value for all-cause and cardiovascular deaths between estimated glomerular filtration rate (eGFR) derived from the European Kidney Function Consortium (EKFC) cystatin C-based formula, the EKFC creatinine-based formula, and Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) cystatin C- or creatinine-based formulas.

Methods: Overall, 4,132 participants from the National Health and Nutrition Examination Survey between 1999 and 2002 were included, and death information was obtained through the National Death Index. To compare predictive accuracy between EKFC eGFRcys (EKFC cystatin C-based formula), CKD-EPI eGFRcys (CKD-EPI cystatin C-based formula), EKFC eGFRcr (EKFC creatinine-based formula), and CKD-EPI eGFRcr (CKD-EPI creatinine-based formula), we conducted time-dependent receiver operator characteristic (ROC) curves and reclassification analysis.

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Background: The impact of long-term renal function change on stroke outcomes remains unclear. This study used the CNSR-III (Third China National Stroke Registry) cohort to determine whether changes in estimated glomerular filtration rate based on creatinine and cystatin C (eGFR) during the first year post stroke were associated with 5-year stroke outcomes.

Methods And Results: We included 4270 patients with centrally tested serum creatinine and cystatin C at admission and 1 year post admission and evaluated 5-year follow-up data.

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Association of cystatin C kidney function measures with motoric cognitive risk syndrome: evidence from two cohort studies.

J Nutr Health Aging

January 2025

Department of Emergency, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou 463599, China. Electronic address:

Background: This study aimed to examine the associations of cystatin C, cystatin C estimated glomerular filtration rate (eGFRcys), and the difference between eGFRs (eGFRdiff) using cystatin C and creatinine levels with incident motoric cognitive risk syndrome (MCR).

Methods: We utilized data from two nationally representative cohort studies, the China Health and Retirement Longitudinal Study (CHARLS, 2011-2015) and the US Health and Retirement Study (HRS, 2010-2018). Baseline serum cystatin C and creatinine levels were measured, and eGFRcys and creatinine estimated GFR (eGFRcr) were calculated.

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Background: The estimation of glomerular filtration rate (eGFR) is essential in the early detection of diabetic nephropathy. We herein compare the performance of common eGFR formulas against a gold standard measurement of GFR in patients with diabetes mellitus.

Methods: GFR was measured in 93 patients with diabetes mellitus using iohexol clearance as the reference standard.

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