Objective To investigate the disinfection quality of 26 medical institutions in Chongqing city from 2010 to 2012,compare the disinfection quality between different types of hospital,discuss the problems of disinfection,and provide a scientific basis for controlling and preventing the occurrence of nosocomial infection.Methods According to“Disinfect Technical Specification”and“Hospital Disinfection Health Standard”published by Ministry of Pubic Health,sampling and monitoring the disinfection effect of 26 medical institutions at work-place in Chongqing city from 2010 to 2012 and analysis the dates of disinfection quality were made.Results Totally,6 260 samples were collected from the medical institutions during the 3 years,in which 6246 were eligible,and the total qualified rate was 99.78%.The annual qualified rates for disinfection quality from 2010 to 2012 were 99.76%,99.79%,99.77%,respectively.It was stable and proved that there was no outstanding difference among these hospitals(χ2=0.027,P>0.05).As for different detected objects,the qualified rates of object surface,hands of doctor,disinfector,endoscopic,reverse osmosis water for hemodialysis,disposable medical supplies,equipments for steriliza-tion and salmonella were the highest,all the qualified rates were 100%,followed by pressure steam sterilizer,which was 99.79%,and then followed by the air,which was 99.75%,the qualified rate of disposable hygiene product was 98.80%,the qualified rate of hospital sewage was lowest,which was 93.40%.The qualified rates of the municipal hospital,factory workers′hospital,specialist out-patient,army hospital were 99.76%,100%,100%,99.03%,which proved that there was no outstanding difference among these different types of hospitals(χ2=4.56,P>0.05).Conclusion The monitoring result of the disinfection quality of medical institutions in Chongqing from 2010 to 2012 is i-deal.%目的：了解重庆市26家医疗机构2010～2012年消毒灭菌效果，比较不同类型医院间的消毒质量，探讨消毒灭菌中存在的问题，为控制和预防院内感染的发生和传播提供科学依据。方法根据卫生部《消毒技术规范》和《医院消毒卫生标准》，2010～2012年对重庆市26家医疗机构消毒效果进项现场采样监测并对消毒监测资料进行分析。结果3年共监测样品6260件，合格6246件，总体合格率99．78％。2010～2012年监测合格率分别为99．76％，99．79％，99．77％，各年度消毒合格率稳定，差异无统计学意义（χ2＝0．027，P＞0．05）。不同监测项目（物体表面、医护人员手、使用中的消毒液、内镜、血液透析用反渗水、一次性医疗用品、灭菌器械）沙门氏菌检测合格率最高，均为100％；压力蒸汽灭菌器次之，合格率为99．79％，室内空气合格率为99．75％；一次性卫生用品合格率再次之，为98．80％；医院污水合格率最低，为93．40％。市级医院、厂矿医院、专科门诊、部队医院合格率分别为99．76％，100％，100％，99．03％，各类型医疗机构的消毒情况差异无统计学意义（χ2＝4．56，P＞0．05）。结论重庆市2010～2012年医疗机构消毒灭菌效果监测结果理想。
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