老年病人医院内获得性肺炎（ＮＰ）的发病率很高，其死亡率也随年龄增长而增加，６０岁以上老人因ＮＰ死亡的占４８％。老年肺癌病人容易并发肺部感染，尤其院内肺炎已成为老年人肺癌死亡的主要原因之一。我们对５６例老年肺癌病人并发院内肺炎进行临床综合分析讨论。临床资料 The incidence of nosocomial acquired pneumonia (NP) in elderly patients is very high, and the mortality rate also increases with age. For those over 60 years old, 48% of them are dying from NP. Older lung cancer patients are prone to complicated pulmonary infections, especially hospital pneumonia has become one of the major causes of death from lung cancer in the elderly. We conducted a comprehensive clinical analysis of 56 elderly patients with lung cancer complicated with pneumonia. clinical information