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目的研究中国20岁及以上人群高胆固醇(TC)血症患病率和血浆总TC边缘升高的分布特征。方法采用整群抽样方法,在全国六类地区对抽取到的48299名20岁及以上调查对象进行空腹血浆总TC的检测。结果在一定的年龄范围内,高TC血症患病率和TC边缘升高率均有随年龄增长而升高的趋势,但大部分地区在60～岁组之后出现下降趋势。城市高TC血症患病率由20～岁组1.36%升高到70岁组12.53%;农村由20～岁组0.98%升高到60～岁组的5.15%。城市和农村人群70岁组的TC边缘升高率分别比20～岁组升高了4.4倍和4.2倍。各年龄组的高TC血症患病率和TC边缘升高率均城市高于农村,一类农村均高于二、三、四类农村;二者50岁以前男性均高于女性,50岁之后女性明显高于男性。结论在一定的年龄范围内高TC血症患病率和TC边缘升高率均有随年龄增长而升高的趋势;二者随地区经济水平增高而增高,并有明显的性别差异。
Objective To study the distribution of hypercholesteremia (TC) and elevated plasma total TC in people aged 20 years and older in China. Methods A total of 48299 subjects aged 20 years and over were enrolled in the six regions of China for the determination of total plasma TC using cluster sampling method. Results In a certain age range, the prevalence of hypercholesteremia and TC margin increased with age. However, most of the areas showed a decreasing trend after 60 ~ year group. The prevalence of hypercholesterolemia in urban areas increased from 1.36% in age group of 20 to 12.53% in age group of 70 years old, while that in rural areas increased from 0.98% in 20 ~ age group to 5.15% in 60 ~ age group. The rising rates of TC in 70-year-olds in urban and rural areas were 4.4 and 4.2 times higher than those in 20-year-olds respectively. The prevalence of hypercholesteremia and TC margin in all age groups were higher in urban than in rural areas, and in rural areas of one type were higher than those in rural areas of two, three and four types; both were significantly higher than those of women before the age of 50 and 50 After the women were significantly higher than men. Conclusions The prevalence of hypercholesterolemia and TC margin increased with age in a certain age range. Both of them increased with the increase of regional economic level, and had obvious gender differences.