Serum C-Reactive Protein Levels and Death and Cardiovascular Events in Mild to Moderate Chronic Kidney Disease

概要

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Chronic kidney disease (CKD) is associated with an increased risk of cardiovascular (CV) disease. Elevated circulating levels of high sensitivity C-reactive protein (hsCRP) have been suggested to be associated with high risk of CV disease. It is uncertain whether the CV risk in CKD can be stratified by hsCRP levels in the Japanese population. Baseline data including serum hsCRP and creatinine levels were determined in the general population. Estimated glomerular filtration rate (eGFR) was calculated using a modified MDRD equation, and CKD was defined as eGFR below 60 mL/minute/1.73m2. We analyzed 1,074 male subjects with mild to moderate CKD (mean age, 70.4 years). CV events (stroke and myocardial infarction) and all-cause death were surveyed prospectively. The CKD subjects were followed for 5.1 years, and 72 CV events and 115 all-cause deaths were found (composite endpoint). After adjustment for established CV risk factors, hazard ratios (HRs) for the endpoint were significantly increased according to the hsCRP quintile (P < 0.001), and HR for the highest (versus the lowest) quintile was 2.77 (95% CI; 1.61-4.77). These results suggest that serum hsCRP measurement is a useful tool for the risk stratification of CV events and death in CKD male subjects selected from the general population.