Valentino L, Torregrossa M V, Dardanoni G
Istituto di Igiene G. D'Alessandro dell'Università di Palermo.
Boll Ist Sieroter Milan. 1987;66(2):139-44.
Hospital infections (H.I.) were studied in the University Polyclinic of Palermo, a 1270 beds General Hospital. A prevalence study was carried out in four periods (December, February, June, October) on a sample of 590 patients from randomly chosen from medical and surgical departments. All patients present in the departments were investigated. Data were obtained from hospital records, using a form prepared according to the Italian Study Project of Hospital Infections (SIPIO), and through interview of the patients and/or of the medical staff. After excluding community infections, point prevalence was calculated; moreover, the day in which sign or symptoms of infections appeared was assessed. Cumulative incidence of H.I. and some risk factors associated were estimated using Kaplan-Meier method and Cox model for multivariate analysis.
在拥有1270张床位的巴勒莫大学综合诊所（一家综合医院）对医院感染进行了研究。在四个时间段（12月、2月、6月、10月）对从内科和外科随机选取的590名患者样本进行了患病率研究。对科室里的所有患者都进行了调查。数据从医院记录中获取，使用根据意大利医院感染研究项目（SIPIO）编制的表格，并通过对患者和/或医务人员的访谈获得。在排除社区感染后，计算点患病率；此外，评估感染体征或症状出现的日期。使用Kaplan-Meier方法和Cox模型进行多变量分析，估计医院感染的累积发病率以及一些相关风险因素。
