老年患者医院内感染调查分析

A STUDY ON NOSOCOMIAL INFECTION AMONG ELDERLY INPATIENTS

目的调查分析住院老年患者院内感染情况。方法对我院2002年1月至2003年1月收治住院的4156例65岁以上的老年患者进行了回顾性调查。结果住院老年患者发生院内感染者414例,院内感染发病率为9.96%,明显高于同期总感染率6.28%(P<0.01);发生院内感染的老年患者病死率19.08%,大于未发生感染的老年患者病死率5.39%(P<0.01);不同年龄院内感染的发病率差异有显著性,随着年龄的增长,院内感染发生率也增高;院内感染部位主要为下呼吸道(31.09%),泌尿道(25.20%)和胃肠道(18.49%);菌群组成以革兰氏阴性杆菌为主占48.13%,革兰氏阳性球菌次之占28.63%,真菌占23.23%,有上升趋势。结论院内感染与年龄,侵袭性操作等密切相关,应加强感染的防治。

Objective To investigate the nosocomial infection among elderly inpatients. Methods A retrospective study on 4156 elderly inpatients (≥65years old) was undertaken from January 2002 to January 2003 in Shanghai Jing-an Hospital. Results 414 cases due to nosocomial infection were identified with a rate of 9.96 %.It was higher than total infection rate of 6.28%in the corresponding period (P< 0.01). The overall death rate of nosocomial infection in elderly patients nosocomial was 19.08%, much higher than that without nosocomial infection which was 5.39%(P< 0.01). There existed significant increase of nosocomial infection rate with increase of ages. The older the age, the higher was the rate of nosocomial infection. Nosocomial infections occurred mainly in the lower respiratory tract(31.09%),then urinary tract(25.20%) and gastrointestinal tract(18.49%). The main pathogenic organisms of nosocomial infection were gram negative bacilli(48.13%),gram positive cocci(28.63%)and fungus(23.23%),the latter had a tendency of going up. Conclusions Nosocomial infections were closely related to age , invasive operation etc. Prevention and proper treatment of nosocomial infection should be strengthened.