医院内感染的干预性研究

目的 了解医院内感染的流行特征和易患因素。方法 我们对1993－1997年住院病人的院内感染进行了干预性研究。结果 1993－1997年住院病人共25332例，发生院内感染共1088例，感染率为4．30％。从1993－1994年是回顾性研究，两年间住院病人8338例，发生院内感染者475例，感染率5．70％。1995－1997年是采取干预措施后进行的前瞻性研究，3年期间住院病人共16994例，感染人数613例，感染率为3．61％。结论 干预前后院内感染的发病率差异有显著统计学意义（x^2=98.8,P＜0．01）。干预措施对降低院内感染发病率效果显著。

A Study on Interfering Measures of Hospital Infections

Objective To find out the epidemic features and susceptibility factors of the hospital infections. Methods We carried out interference study on the hospital infections. Results From 1993 to 1997,1088 of 25 332 hospital patients were found suffering from hospital infections(4.30%).A retrospective study showed that 475 of all the 8338 hospital patients were affected with hospital infections(5.70%).A prospective study were carried out from 1995 to 1997 by interfering measures.Among all the 16 994 hospitalization patients 613 suffered from hospital infections(3.61%). Conclusion There was statistical significance between incidence rates before and after the interference,interfering measures are remarkably effective on the reduction of hospital infection rates.