医院医疗器械相关血液感染危险因素的Logistic回归分析

Logistic regression analysis of risk factors of blood infection associated with medical device in hospital

目的:研究医院医疗器械相关血液感染的危险因素。方法:选取我院2011-04-01~2017-04-01发生医疗器械相关血液感染的患者100例为研究组;另取同期未发生医疗器械相关血液感染的患者100例为对照组。分别采集两组患者所用清洗消毒过的医疗器械100个、手术室空气生物监测样本100个及治疗科室医务人员100例。比较两组的医疗器械清洗消毒合格率、空气生物监测合格率及医务人员手卫生合格率,并作Logistic回归分析,找出医院医疗器械相关血液感染的危险因素。结果:对照组通过肉眼裸视法与放大镜法检查医疗器械清洗消毒合格率分别为95.00%(95/100)、90.00%(90/100),均明显高于研究组的66.00%(66/100)、54.00%(54/100),组间比较差异均有统计学意义(均P<0.05)。对照组空气生物监测合格率为83.00%(83/100),明显高于研究组的47.00%(47/100),组间比较差异有统计学意义(P<0.05)。对照组医务人员手卫生合格率为96.00%(96/100),明显高于研究组的53.00%(53/100),组间比较差异有统计学意义(P<0.05)。Logistic回归分析示:医疗器械清洗消毒不合格、空气生物监测不合格及医务人员手卫生生物监测不合格是影响医院医疗器械相关血液感染的独立危险因素(均P<0.05)。结论:影响医院医疗器械相关血液感染发生的危险因素主要是医疗器械清洗消毒不合格,临床工作中可通过针对性措施干预,以降低医疗器械相关血液感染的发生风险。

Objective：To study the risk factors of hospital blood infection in medical devices.Methods：A total of 100 patients related blood infections from April 2011 to April 2017 in our hospital was selected as study group.In addition,100 cases of suspected blood infection in this study were selected as control group.The medical devices used by patients in 100 cases,air monitoring biological sample in 100 cases and treatment medical personnel in 100 cases between two groups were collected.Medical appliance cleaning and disinfection qualified rate,air qualified rate of biological monitoring and medical staff hand hygiene rate were compared,and Logistic regression analysis was done to find out the related risk factors for the blood infection.Results：The control group of the magnifying glass bare naked eye under medical instrument cleaning and disinfection qualified rate were 95.00%（95/100）,90.00%（90/100）,which were significantly higher than the study group of 66.00%（66/100）,54.00%（54/100）,and the difference were significant（P〈0.05）.The qualified rate of air bioassay in the control group was83.00%（83/100）,which was significantly higher than the study group of 47.00%（47/100）,and the difference was statistically significant（P〈0.05）.The control group of qualified rate of hand hygiene of medical staff was 96.00%（96/100）,which was significantly higher than the study group of 53.00%（53/100）,the difference was statistically significant（P〈0.05）.Logistic regression analysis showed medical devices cleaning,the air biological test and the hand hygiene biological monitoring of medical personnel were not qualified,which were the independent risk factors of hospital medical device related blood infection（P〈0.05）.Conclusion：The risk factors of hospital infection related medical devices including medical devices cleaning is not qualified,in the clinical work through targeted intervention,to reduce the risk of medical device related infections.