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Endocr Res. 2014;39(3):94-8. doi: 10.3109/07435800.2013.840652. Epub 2013 Oct 23.

Metabolic syndrome and C-reactive protein concentration as independent correlates of chronic kidney disease.

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Department of Health Business Administration, Meiho University , Pingtung County , Taiwan .


Inflammation is a common phenotype for cardiometabolic disorders. In this study, we attempted to investigate inter-relationships between metabolic syndrome (MetS), C-reactive protein (an inflammatory biomarker) and chronic kidney disease (CKD). We performed a cross-sectional analysis of data from a representative sample of 4425 Chinese adults in Taiwan. The MetS was defined by a unified criteria set by several major organizations. A CKD event was defined as an estimated glomerular filtration rate (eGFR) <60 mL/min per 1.73 m(2). Additionly, a CRP cutpoint of 3 mg/L was used to differentiate high and low CRP levels. Overall, 1000 participants had MetS, resulting in a prevalence rate of 22.6%. High CRP level was noted in 782 (17.6%) subjects. In addition, a total of 508 (11.5%) persons qualified as having CKD. Subjects with the MetS had 1.55-fold [95% confidence interval (CI), 1.03-2.32] increased odds of CKD compared with their counterparts without the MetS after multiple adjustments. In addition, there was a significantly graded relationship between increasing levels of serum CRP and prevalent CKD (p for trend = 0.001). Participants in the highest category of serum CRP had a significantly elevated odds of CKD as compared with those in the lowest category [odds ratio (OR), 1.60; 95% CI, 1.21-2.12]. However, there was no interaction in excess of additive scale between the presence of MetS and high CRP level (p = 0.83). These findings suggest that MetS and high CRP were independently associated with increased prevalence of CKD in Chinese adults.


C-reactive protein; Chronic kidney disease; inflammation; metabolic syndrome

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