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肺癌是当今世界上对人类健康和生命危害最大的恶性肿瘤之一,其发病率和死亡率居恶性肿瘤第一位。在我国,肺癌是第一大肿瘤,占全部恶性肿瘤死亡的25.0%。且发病率和死亡率仍在陆续上升,据统计,每年新增肺癌病例达50万~60万。世界卫生组织(WHO)预测,到2025年,中国每年新增肺癌病例将超过100万,成为世界第一肺癌大国~([1])。多年来肺癌患者的5年生存率无明显提高~([2]),1975~1977年为12.7%,1996~2004年为15.7%,20年间仅提高了
Lung cancer is one of the most malignant tumors in human health and lives in the world today. Its incidence and mortality rank the first among malignant tumors. In China, lung cancer is the largest tumor, accounting for 25.0% of all cancer deaths. The morbidity and mortality are still on the rise. According to statistics, there are 500,000 to 600,000 new cases of lung cancer each year. The World Health Organization (WHO) predicts that by 2025, China will have an annual increase of more than 1 million lung cancer cases and become the world’s number one lung cancer country (1). Over the years lung cancer patients 5-year survival rate was not significantly improved ~ ([2]), 1975 ~ 1977 was 12.7%, 1996 ~ 2004 was 15.7%, only increased in 20 years