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The association between elevated serum uric acid level and an increased risk of renal function decline in a health checkup cohort in China.

Abstract：

PURPOSE:To investigate whether an elevated serum uric acid (SUA) level is an independent risk factor for rapid decline in renal function or new-onset chronic kidney disease (CKD) in a Chinese health checkup population. METHODS:A cohort study of 6495 Chinese individuals who underwent health checkups with normal estimated glomerular filtration rate (eGFR) at baseline was carried out from May 2011 to April 2016. Examinations included a questionnaire, physical measurements, and blood sampling. The gender-specific quartiles of blood uric acid were used to present baseline descriptive data. Rapid decline of renal function was defined as eGFR loss of > 3 mL/min/1.73 m2/year. New-onset CKD was defined as follow-up eGFR < 60 mL/min/1.73 m2 or positive proteinuria. Multivariable logistic regression was used to assess the relationship between serum uric acid and the following outcomes: rapid decline of renal function, incident CKD, and combined renal outcomes. RESULTS:During mean follow-up of 52.8 months, 1608 (24.8%) individuals reached combined renal events. Rapid decline in renal function developed in 1506 (23.2%) individuals, and incident CKD was documented in 372 (5.7%) individuals. In a multivariate model adjusted for age, BMI, diabetes, hypertension, alcohol drinking, SBP, total cholesterol, and eGFR, the odds ratio for rapid decline of renal function increased across quartiles of serum uric acid level, reaching a 1.32 (95% CI 1.02-2.97) for the top quartile compared to the lowest quartile (P for trend < 0.001). Meanwhile, higher SUA was also associated with incident CKD in all models. Furthermore, an increased risk of reaching renal outcomes across increasing quartiles of SUA levels appeared to be similar among subgroups stratified according to age, eGFR, and SBP (P < 0.05 in all). CONCLUSIONS:These findings suggest that higher SUA may predict progressive renal damage and dysfunction in a health checkup population in China.

journal_name

Int Urol Nephrol

journal_title

International urology and nephrology

authors

Cao X,Wu L,Chen Z

doi

10.1007/s11255-017-1732-6

subject

Has Abstract

pub_date

2018-03-01 00:00:00

pages

517-525

issue

eissn

0301-1623

issn

1573-2584

pii

10.1007/s11255-017-1732-6

journal_volume

pub_type

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The association between elevated serum uric acid level and an increased risk of renal function decline in a health checkup cohort in China.