Serum Uric Acid to Creatinine Ratio Independently Predicts Incident Metabolic Syndrome Among Community-Dwelling Persons

Jan 8, 2019Metabolic syndrome and related disorders

Blood Uric Acid to Creatinine Ratio Predicts New Cases of Metabolic Syndrome in Community Adults

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Abstract

Baseline SUA/Cr was significantly associated with incident MetS among community-dwelling women.

A total of 447 men and 625 women participated in the cohort study, with 34.7% of men and 49.6% of women having MetS at baseline.
After 3 years, 33.3% of men and 45.8% of women developed MetS.
In women, baseline SUA/Cr and age were significantly associated with the number of MetS components at follow-up.
The odds of developing incident MetS increased with higher quartiles of baseline SUA/Cr, with an odds ratio of 2.07 for the highest quartile.
Baseline SUA/Cr was a significant predictor of incident MetS in women aged 60 years and older with normal kidney function and existing MetS.

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BACKGROUND: Metabolic syndrome (MetS) is related to the increased risk of major cardiovascular disease. The link between high serum uric acid (SUA) and creatinine (Cr) levels is causally related to MetS and its components. However, whether renal function-normalized SUA [i.e., SUA to Cr ratio (SUA/Cr)] predicts incident MetS and its components remains inconclusive.

MATERIALS AND METHODS: We conducted a prospective cohort study designed as part of the Nomura study. The subjects comprised 447 men ages 68 ± 10 years and 625 women ages 68 ± 9 years from a rural village, and 155 (34.7%) men and 310 women (49.6%) had MetS at baseline. We found participants who underwent a similar examination 3 years later and analyzed the relationship between baseline SUA/Cr and incident MetS defined according to the modified criteria of the National Cholesterol Education Program-Adult Treatment Panel III (NCEP ATP III).

RESULTS: One hundred forty-nine (33.3%) men and 286 (45.8%) women had MetS after a 3-year follow-up. Multiple linear regression analysis was performed to evaluate the contribution of possible confounding factors for MetS. In women only, baseline SUA/Cr, as well as baseline number of MetS and age, was significantly and independently associated with the number of MetS components at follow-up. The multivariable-adjusted odds ratios (95% confidence interval) for incident MetS across three quartiles of baseline SUA/Cr (1st-2nd, 3rd, and 4th) were 1.00, 1.62 (0.97-2.69), and 2.07 (1.20-3.56), respectively. Furthermore, when subjects were stratified by age, estimated glomerular filtration rate (eGFR), and presence of baseline MetS, baseline SUA/Cr was also a significant and independent determinant for incident MetS in women with age ≥60 years, eGFR ≥70 mL/min/1.73 m, and presence of baseline MetS. 2

CONCLUSIONS: Baseline SUA/Cr was significantly associated with incident MetS among community-dwelling women.

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Serum Uric Acid to Creatinine Ratio Independently Predicts Incident Metabolic Syndrome Among Community-Dwelling Persons

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