肺癌是我国城市居民的主要死亡原因之一，１９９４年上海市男女肺癌的发病率分别占全部恶性肿瘤的２４．１３％（第一位）及２８．８％（第三位）。为找出上海市肺癌的发病原因，对肺癌进行有效的预防，同时为国家的恶性肿瘤防治规划提供资料，我们在１９９５年～１９９７年间 Lung cancer is one of the leading causes of death among urban residents in China. In 1994, the incidence of lung cancer in both men and women accounted for 24.13% (first) and 28.8% (third) of all malignant tumors. To find out the causes of lung cancer in Shanghai, to effectively prevent lung cancer, and to provide information for the country’s cancer prevention and control program, we were involved in 1995-1997.