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肺癌有“二十世纪的鼠疫”之称,威胁着千百万人的生命。随着工业化程度提高,肺癌发病率有逐渐上升趋势,工业发达国家明显高于发展中国家。据1969～1971年世界55国资料统计,肺癌平均死亡率男性为36.31/10万,女性为6.97/10万,男性肺癌占第一位的有33国,男女合计占第一位的有24国,占第二位的有23国。美国1976年男性肺癌发病占癌总数22％,死亡占癌亡总数33％,均为
Lung cancer is known as “the plague of the 20th century” and threatens the lives of millions of people. With the increase in the degree of industrialization, the incidence of lung cancer has gradually increased, and industrial developed countries are significantly higher than those in developing countries. According to statistics of 55 countries in the world from 1969 to 1971, the average mortality of lung cancer was 36.31 per 100,000 men, and women were 6.97 per 100,000. Men with lung cancer accounted for 33 countries, with men and women taking the first place with 24 countries. There are 23 countries in the second place. In the United States, in 1976, the incidence of lung cancer accounted for 22% of the total number of cancers, and death accounted for 33% of the total number of cancers.