为探讨三峡库区腹地肺癌死亡的成因 ,为库区人民健康服务。本站于 1 991～ 1 999年 ,在库区首次对吸烟与肺癌死亡关系进行了前瞻性调查研究。材料与方法1 研究对象 :选择本地区 1 991年《全国吸烟与健康调查》所有 40岁以上男性为研究对象 ,其中有吸烟史者为暴露组 ,从来没有 In order to explore the causes of lung cancer death in the hinterland of the Three Gorges Reservoir area and serve the health of people in the reservoir area. The station from 1991 to 1999, for the first time in the reservoir area of ​​smoking and lung cancer mortality were prospectively investigated. Materials and Methods 1 Subjects: All the men over the age of 40 in the National Survey of Smoking and Health Survey, 1991, were selected as the study subjects, of whom smoking history was exposed group, never