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近半个世纪以来,世界上许多国家和地区的肺癌患病率均在逐年增加。吉林省居民死于肺癌者居各种肿瘤的第二位,而长春市为第一位。为了进一步了解肺癌的致病因素,我们于1981年初对长春市四个区的肺癌死亡者204例进行了回顾性配对调查。
Nearly half a century, the lung cancer prevalence in many countries and regions in the world are increasing year by year. Residents of Jilin Province died of lung cancer living in the second place of various tumors, and Changchun City as the first place. In order to further understand the causative factors of lung cancer, we retrospectively investigated 204 cases of lung cancer deaths in four districts of Changchun in early 1981.