The Influence of Difference of Dietary Pattern between Elderly Tibetans and Han Peoples on Blood Lipids

Objective To analyze the dietary behavior and blood lipid profiles of the local elderly Tibetans and Han people living in Tibet and in Beijing,and to advise some steps to promote the health of local elderly Tibetans.Methods We collected the data of diet and blood lipids of the local Tibetan and Han people living in Tibet and in Beijing aged over 35 yrs by the method of migration epidemiology.Results The diet pattern of Tibetan was high intakes of coarse grains(219.8±123.3 g/day),meat(226.2±210.1 g/day),and wine(580.8±1 049.0 g/day),but low intakes of fresh vegetable fruits(217.8±160.4 g/day).The prevalence of hypertriglyceridemia(5.0%) and low high-density lipoprotein cholesterol(3.1%) of Tibetan was lower than that of other two groups(elderly Han people in Tibet 22.5% and 10.7%;elderly Han people living in Beijing 14.7% and 8.4%,all P0.05).The diet pattern of Han residents living in Tibet was similar with that of Han residents in Beijing.The prevalence of hypertriglyceridemia(22.5%) of Han residents in Tibet was higher than that of local Tibetan and Han residents in Beijing.The prevalence of low high-density lipoprotein cholesterol(10.7%) of Han residents living in Tibet was higher than that of Tibetan(3.1%,P0.05),but similar with Han residents in Beijing(8.4%).The prevalence of hypercholesterolemia(2.7%) and high blood low-density lipoprotein cholesterol(1.6%) of Han residents in Tibet was lower than those of Han residents in Beijing(7.6% and 4.0%).Conclusion The dietary pattern,dietary behavior or environment in Tibet may be a protective factor for the prevalence of hypercholesterolemia and high low-density lipoprotein-cholesterol.The high fat dietary in Tibet is a harmful factor for to prevalence of hypertriglyceridemia.