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对本院内科系统和外科系统进行回顾性调查和前瞻性监测。７年共监测７２６９例，发现医院感染病人５６４例，总感染率７．７６％。例次感染病例５８４例，例次感染率８．０３％。各年度医院感染率界于１１．５０％～５．６７％之间。以泌尿外科最高１１．５０％，呼吸科最低５．５９％。感染部位依次为；下呼吸道、泌尿道、术后伤口、皮肤、胃肠道、其他及胸腹颅腔、血液等。病原菌以Ｇ－杆菌占６７．９％，对多种抗生素耐药，存在抗生素使用不合理及盲目用药情况。通过病例对照研究，明确了手术、导尿、病情重、住院日期长、抗生素使用不合理等５项是医院感染的危险因素
The hospital medical system and surgical system for retrospective investigation and prospective monitoring. A total of 7269 cases were monitored in 7 years, 564 cases of hospital infection were found, with a total infection rate of 7.76%. Cases of cases of infection in 584 cases, the case of infection rate of 8.03%. The annual hospital infection rate in the community between 11.50% ~ 5.67%. The highest urological 11.50%, respiratory minimum 5.59%. Infection sites followed; lower respiratory tract, urinary tract, postoperative wounds, skin, gastrointestinal tract, other and chest and abdomen cranial cavity, blood and so on. Pathogens accounted for 67.9% of G-bacilli, a variety of antibiotic resistance, there is irrational use of antibiotics and blind drug use. Through the case-control study, 5 items of operation, catheterization, serious illness, long hospital stay and unreasonable use of antibiotics were identified as risk factors for nosocomial infection