在美国70岁以上定为老年。老年人至少占全人口的7%。男性老年支气管肺癌的发病率为500/10万,女性为91/10万。预计每年发病人数前者为32,200,后者为8,700。每年约有10,000～14,000人需行外科手术。对有关老年支气管肺癌手术问题必须指出下列4点:①肺癌的生物学活性;②估计寿命(life In the United States, people over the age of 70 are considered old. Older people make up at least 7% of the entire population. The incidence of senile bronchial lung cancer is 500 per 100,000 in men and 91 per 100,000 in women. It is estimated that the former is 32,200 and the latter is 8,700. About 10,000 to 14,000 people need surgery every year. The following four points must be pointed out regarding the surgical treatment of bronchial lung cancer in elderly patients: 1 Biological activity of lung cancer; 2 Life expectancy (life)