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自１９８９年１２月至１９９３年１２月，老年肺炎混合感染和耐药性的处理共１８８例，男１４０例，女４８例。年龄为６０～９３岁。分为两组：第１组１０８例，以对Ｇ＋细菌耐药性为主７６例，对Ｇ－细菌耐药性为主３２例，第２组８０例，对Ｇ＋细菌耐药性为主２８例，耐Ｇ－细菌为主５２例。第２组病人Ｇ－细菌感染较第１组病人为多，且病情重。两组采用不同治疗方案，第１组治愈５８例（５３．７％），死亡３１例（２８．７％）；第２组治愈５９例（７３．７５％），死亡８例（１０％）Ｐ值＜０．０１。
From December 1989 to December 1993, there were 188 cases of mixed infection and drug resistance of elderly patients with pneumonia, 140 males and 48 females. Age is 60 ~ 93 years old. Divided into two groups: the first group of 108 cases, mainly to G + bacterial resistance in 76 cases, the main resistance to G-bacteria in 32 cases, the second group of 80 cases, the main resistance to G + bacteria 28 Cases, resistant to G-bacteria-based 52 cases. Group 2 patients had more G-bacterial infections than Group 1 patients and were seriously ill. In group 1, 58 cases (53.7%) were cured and 31 cases (28.7%) were cured in group 1. Group 2 cured 59 (73.75%) and died 8 (10%), P value <0.01.