院外获得性肺炎是老年人院外感染性疾病中对生命威胁较大的一种常见病。病情的严重程度随年龄增长而加重 ,病死率高。随着老年人群逐年增多 ,更应重视老年人院外获得性肺炎的早期诊断和治疗 ,以利改善其预后。现将我们自１９９２年１月至１９９９年６月收治的老年院外获得性肺 Extra-hospital acquired pneumonia is a common disease that is a life-threatening threat among nosocomial infectious diseases in the elderly. The severity of the disease increased with age, high mortality. As the elderly population increases year by year, more attention should be paid to the early diagnosis and treatment of extra-nosocomial pneumonia in elderly people in order to improve their prognosis. We now have access to extra-aged lungs admitted to our hospital from January 1992 to June 1999