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目的 了解广州市医院肺部感染住院病例中传统的非典型肺炎本底情况 ,比较以往传统的非典型肺炎与广东省暴发的传染性非典型肺炎 (SARS)在流行病学特征上的异同。方法 回顾性调查分析广州市 3家医院 2 0 0 1～ 2 0 0 2年肺部感染住院病例的病案材料 ,按广东省传统的非典型肺炎临床诊断标准确诊病例 ,并与广东省 2 0 0 3年 1～4月发生的SARS病例进行比较分析。结果 共调查 5 74 7例肺部感染患者病案 ,其中符合传统的非典型肺炎诊断标准的病例 86 5例 ,占肺部感染病例数的 1 5 0 5 % ,占住院总病例数的 1 73%。传统的非典型肺炎每月均有病例发生 ,发病年龄主要集中在婴幼儿和 6 0岁以上老年人 ,占 6 0 1 2 % ,职业分布以儿童和离退休人员为主 ,占 5 3 5 3%。同期发生的传统的非典型肺炎病例与 2 0 0 3年SARS病例比较 ,其发病时间、年龄和职业分布差异均有显著性 (χ2 值分别为1 0 3 2 9、30 1 5 5、4 37 94 ,P均 <0 0 1 )。结论 传统的非典型肺炎发病主要以婴幼儿和老年人为主 ,与SARS流行病学特征不一致
Objective To understand the prevalence of SARS in hospitalized patients with pulmonary infection in Guangzhou and to compare the epidemiological characteristics of the SARS epidemic between the traditional SARS and Guangdong Province. Methods A retrospective survey was conducted to analyze the medical records of inpatients with pulmonary infection from 2001 to 2002 in three hospitals in Guangzhou. The cases were confirmed according to the clinical diagnostic criteria of SARS in Guangdong Province and were compared with those of Guangdong Province 3 years from January to April SARS cases were compared. Results A total of 5 747 cases of pulmonary infection were investigated. Among them, 86 5 cases met the diagnostic criteria of SARS, accounting for 150.5% of the total number of cases of pulmonary infection, accounting for 1 73% . The incidence of SARS is on a monthly basis. The age of onset mainly lies in infants and young children and the elderly over 60 years old, accounting for 60.12%. The distribution of occupations is mainly children and retirees, accounting for 53.5% %. The incidence of SARS in the same period was significantly different from that of SARS in 2003 (χ2 = 1 0 3 2 9, 30 1 5 5, 4 37 94, P <0 0 1). Conclusion The incidence of SARS is mainly in infants and young children, and is not consistent with the epidemiological characteristics of SARS