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对资料较完整的１４８例肺炎病人分成两组，老年组９４例，非老年组６４例，就其临床表现、实验室及Ｘ线检查、细菌学检查，并发症与治疗转归等进行对比分析，经统计学处理，均有显著性差异（Ｐ＜０．０１或Ｐ＜０．０５）。结果表明老年组有发病率高，起病隐匿，临床表现不典型，革兰氏阴性杆菌感染占优势，多肺叶受累，合并多种基础疾病、并发症等特征，指出治疗应采取综合治疗，抗感染宜选择广谱抗生素和对肝肾功能损害小的药物，避免并发症的发生，以降低病死率
148 patients with complete pneumonia were divided into two groups, 94 in the elderly group and 64 in the non-elderly group, and compared their clinical manifestations, laboratory and X-ray examination, bacteriological examination, complications and treatment outcome , Statistically significant difference was found (P <0.01 or P <0.05). The results showed that the elderly group had the characteristics of high morbidity, occult onset, atypical clinical manifestations, Gram-negative bacilli infection, multiple lobes involvement, combined with a variety of underlying diseases and complications, pointed out that the treatment should be comprehensive treatment, anti- Infection should choose broad-spectrum antibiotics and liver and kidney dysfunction drugs, to avoid the occurrence of complications in order to reduce mortality