摘要
在世界范围内，肺癌所导致的死亡人数比其它任何癌症都多，无论男女都深受其害。2004年，美国因罹患肺癌而死亡的人数大约为160000，而结肠癌、乳腺癌和前列腺癌加起来导致的死亡人数为120，000人。每年全世界大约新增10095名发病者，导致921，000例死亡。肺癌的存活率极低：美国五年中为14％，而同一时间内世界其它地区为8％。还有一个更令人担忧的趋势，越来越多的年轻人感染肺癌。
Lung cancer causes more deaths worldwide than any other form of cancer, afflicting both men and women, The US experienced an estimated 160,000 lung cancer deaths in 2004, compared to 120,000 deaths caused by colorectal, breast and prostate cancer combined. About one million new cases break out each year worldwide, resulting in 921,000 deaths. The survival rate for lung cancer is poor： about 14 per cent over five years in the US and eight per cent over the same period in the rest of the world. In an even more worrying trend, a growing number of young people are developing lung cancer.
