医院感染率新旧指标对比分析

Comparative analysis of nosocomial infection rate at new and old monitoring index

目的:对比"医院感染发病率"和"患者日医院感染发病率"两指标的不同和监测意义。方法:应用《医院感染调查表》对2005年1月至2007年12月期间住院患者进行全院以及各病房医院感染率的调查并以"医院感染发病率"和"患者日医院感染发病率"进行相关性分析。结果:住院患者年度医院感染率比较显示两指标排序一致,无差异;而以各病房为监测单位显示,两种指标无一致性,排序有明显差别(Z=1.988,P=0.047)。结论:"患者日医院感染发病率"依据于患者住院时间,对不同病种患者的医院感染情况更具有可比性,更适用于各医院间和各病房间的评估比较,而"医院感染发病率"适用于同一单位内在时间跨度上的比较。

Objective： To compare nosocomial infections rate and nosocomial infection incidence per patients-day and observe their monitoring significance. Methods： The nosocomial infections rate and daily nosoeomial infection incidence of hospital-wide and every ward were surveyed by questionnaire from Jan 2005 to Dec 2007. Results： The two yearly indexes of hospital-wide had no difference in rank order, while had obvious difference among different wards （Z=1.988, P=0.047）. Conclusion： The daily nosocomial infection incidence is based on length of patient stays, so it is suitable for the comparison between the different diseases, hospitals or wards. And nosocomial infection incidence is more suitable for the comparison between different periods in a same denartment.