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1 材料与方法1.1 病例与对照的选择 医院感染病例为 1997年4月份至 1998年 4月份住院患者中通过回顾性调查 ,所获得的医院感染患者 ,对照同病种未感染的患者。1.2 医院感染的诊断标准 按照卫生部医政司、医院内感染监控协调小组制订的医院感染诊断标准。1.3 对比条件 病
1 Materials and methods 1.1 Selection of cases and controls Nosocomial infections were from hospitalized patients from April 1997 to April 1998 through retrospective survey, the patients with nosocomial infections, patients with the same type of non-infected patients. 1.2 The diagnostic criteria for nosocomial infections in accordance with the Ministry of Health, Department of Medicine, Hospital Infection Monitoring Coordination Group developed diagnostic criteria for nosocomial infections. 1.3 contrast conditions disease