抽取城郊结合部三个乡镇于1998年3月份开展慢性病的流行病学调查。1　对象和方法调查对象为当地自然人群35周岁以上在当地生活满五年或五年以上的居民;调查内容有年龄、性别、职业、文化程度、主要慢性病史(包括高血压、冠心病、脑卒中、糖尿病、肿瘤病史)、吸烟史、饮酒史及体 Extracting the outskirts of the three townships to carry out the epidemiological survey of chronic diseases in March 1998. 1 Subjects and Methods The surveyed population were local residents over 35 years of age who lived in the local area for five years or more. The survey included age, gender, occupation, education, major chronic medical history (including hypertension, coronary heart disease, brain Stroke, diabetes, cancer history), smoking history, alcohol history and body