Abstract: Objective To know characteristics of dyslipidemia in Buyi and Han residents in Longli County and to provide evidence for prevention strategies. Methods Stratified sampling was adopted to select 2 communities within the county seat of Longshan and 4 villages from 4 towns. 2929 healthy Buyi and Han residents aged between 20 to 80 years participated in this study. Their serum total cholesterol (TC), triglyceride (TG), high-density lipid-cholesterol (HDL-C), and low-density lipid cholesterol (LDL-C) were tested. Results The prevalence of dyslipidemia was 25.9% (31.1% for men, 22.0% for women, respectively). It was higher in men than in women (P<0.001). Compared with Buyi people, the prevalence was significantly higher in Han people (34.0%) then in Buyi was only 21.73% (P<0.001). The prevalence of high TG level was significantly higher in Han population (P<0.001), 13.2% in Buyi population and 22.6% in Han population, with 16.4% in the pooled sample. The prevalence of high TC level was significantly higher in Han population (P<0.05), 9.8% in Buyi population and 12.5% in Han population, with 10.7% in the pooled sample. The prevalence of low HDL-C level was significantly higher in Han population (P<0.001), 4.2% in Buyi population and 9.1% in Han population, with 5.8% in the pooled sample. The prevalence of high LDL-C level was significantly higher in Han population (P<0.05), 4.1% in Buyi population and 6.0% in Han population, with 4.8% in the pooled sample. Additionally, obesity and hypertension were the main risk factors for dyslipidemia among adults aged between 45 and 59 years. Conclusions High TG and hypercholesterolemia were the main components of dyslipidemia in Buyi and Han adults in Longli County. The prevalences of high TG, high TC, and high LDL-C were all higher than the results of 2010 national survey. Obviously, the prevalence of dyslipidemia was increasing over time. It suggested that attention should be paid for prevention and treatment of dyslipidemia in adults aged between 45 and 59 years.

Key words: Key word Han population, Buyi population, Dyslipidemia