Uric acid levels, kidney function, and cardiovascular mortality in US adults: National Health and Nutrition Examination Survey (NHANES) 1988-1994 and 1999-2002.

Background: Chronic kidney disease (CKD) and hyperuricemia often coexist, and both conditions are increasing in prevalence in the United States. However, their shared role in cardiovascular risk remains highly debated.

Study Design: Cross-sectional and longitudinal.