心血管疾病是现代社会严重威胁人类健康,引起死亡的重要疾病。高血压是脑卒中和冠心病的独立危险因素,其患病率在世界各地都很高,在工业化程度高的国家,患病率更高,在欧美国家约20%,亚洲各国的患病率水平基本接近。我国是原发性高血压的高发国家,据估计全国约有1亿高血压患者,每年新发病例约 300万-400万。高血压的患病率随年龄增加而上升, 35岁以后增长幅度较大,在60岁以前,男性患病率高于女性,但60岁以后女性高于男性。高血压的患病率还存在明显的地区差异和职业差异,另外,文化程度和 Cardiovascular disease is an important disease in modern society that seriously threatens human health and causes death. Hypertension is an independent risk factor for stroke and coronary heart disease, and its prevalence is high throughout the world, with a higher prevalence in countries with a higher degree of industrialization, about 20% in Europe and the United States, and the prevalence in Asian countries The level of basic close. China is a country with high incidence of essential hypertension. It is estimated that there are about 100 million hypertensive patients in China with about 3 million to 4 million new cases each year. The prevalence of hypertension increased with age, and increased significantly after 35 years of age. Before the age of 60, the prevalence of men was higher than that of women, but after 60 years of age women were higher than men. The prevalence of hypertension there are obvious regional differences and occupational differences, in addition, the educational level and