The prevalence of gout and hyperuricemia in middle-aged and elderly people in Tibet Autonomous Region, China A preliminary study

Abstract

Objective: Gout and hyperuricemia are common public health problem. There has been no epidemiological survey of gout and hyperuricemia in Tibet Autonomous Region, the southwest of China. Therefore, we estimated the prevalence of gout and hyperuricemia in Luoma Town, Naqu City, Tibet Autonomous Region of China. Methods: A population-based cross-sectional survey was conducted among 1458 residents of Luoma Town, Tibet Autonomous Region, age >= 40 years. We used questionnaires in face-to-face interviews, anthropometric measurements and serum uric acid test. Hyperuricemia was defined as serum uric acid level >= 7 mg/dl in men and >= 6 mg/dl in women. The definition of gout in this study was on the basis of new 2015ACR/EULAR classification criteria. Results: Nine hundred eighty-nine participants completed all items of gout and 818 participants attended to be taken blood samples for serum UA levels test. The overall crude prevalence of gout and hyperuricemia was 0.30% and 1.83% respectively. It was more prevalent in men than in women (2.86% vs 0.75%, P = .034) in hyperuricemia group. Tibetan had a lower age-standardized prevalence of gout 0.26% (95% confidence interval (CI): 0%-0.60%) and hyperuricemia 2.05% (95% confidence interval (CI): 0.99%-3.44%) compared with the China Health and Retirement Longitudinal Study results. Conclusion: This is the first large-scale population-based survey to demonstrate the prevalence of gout and hyperuricemia of the middle-aged and elderly population in Tibet Autonomous Region, China. The prevalence of gout and hyperuricemia is relatively lower than other places in China, and that might be influenced by ethnicity, genetic and environment factors. These findings will be useful for the future researches and health care strategies.