Abstract Hyperuricaemia is a risk for premature death. This study evaluated the burden of hyperuricaemia (serum urate > 7 mg/dL) for all-cause and cardiovascular mortality in 515,979 health checkup participants using an index of population attributable fraction (PAF). Prevalence of hyperuricaemia at baseline was 10.8% in total subjects (21.8% for men and 2.5% for women). During 9-year follow-up, 5952 deaths were noted, including 1164 cardiovascular deaths. In the Cox proportional hazard analysis adjusted for confounding factors, hyperuricaemia was independently associated with all-cause and cardiovascular mortality (adjusted hazard ratios [95% confidence interval]; 1.36 [1.25–1.49] and 1.69 [1.41–2.01], respectively). Adjusted PAFs of hyperuricaemia for all-cause and cardiovascular deaths were 2.9% and 4.4% (approximately 1 in 34 all-cause deaths and 1 in 23 cardiovascular deaths), respectively. In the subgroup analysis, the association between hyperuricaemia and death was stronger in men, smokers, and subjects with renal insufficiency. Adjusted PAFs for all-cause and cardiovascular deaths were 5.3% and 8.1% in men; 5.8% and 7.5% in smokers; and 5.5% and 7.3% in subjects with renal insufficiency. These results disclosed that a substantial number of all-cause and cardiovascular deaths were statistically relevant to hyperuricaemia in the community-based population, especially men, smokers, and subjects with renal insufficiency.
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