2006-2008年荆州市流感相关疾病住院病例流行病学特征分析

Analysis on Epidemiological Characteristics of Influenza-associated Hospitalization Cases in Jingzhou from 2006 to 2008

目的分析湖北省荆州市2006—2008年流感相关疾病住院病例的流行病学特征。方法采用回顾性调查方法，以确定的疾病和有关健康问题的国际疾病分类（以下简称ICD-10）代码作为检索关键变量查阅流感相关疾病住院病历，分析2006—2008年流感相关疾病住院病例的分布特征，估算住院率大小。结果2006年1月1日一2008年12月31Et间27家医疗机构共收治了38020例流感相关住院病例，年平均住院率为11‰，呈逐年上升趋势。0～1岁年龄组的住院率最高，达到335％0；65岁以上年龄组的病死率最高，达到1．8％。男性流感相关疾病住院率略高于女性。流感相关疾病在全年均可发生，不同年份表现出不同的季节发病高峰。结论该地区流感相关疾病的住院负担相对较重，特别是在0-1岁年龄组和65岁以上年龄组，为流感相关疾病高危人群。强调了将儿童和老人作为今后开展流感防治工作重点对象的必要性。

Objective To analyze the epidemiological features of influenza - associated hospitalized patients in Jingzhou, Hubei Province during the period of 2006 - 2008. Methods We conducted a retrospective study for hospitalization cases ad- mitted to all health facilities in the urban area of Jingzhou from 2006 to 2008. Information from medical records was collected based on the International Classification of Diseases, Tenth Revision （ICE）- 10） codes for influenza- associated disease. We ana- lyzed the epidemiological characteristics and calculated the hospitalization rate. Results Totally 38,020 hospitalization cases admitted to 27 medical facilities/or influenza - associated disease wereextracted from January 1, 2006 to December 31, 2008. Our study showed that the average annual hospitalization rate was 11%o, and increased year by year. The annual hospitalization rate was the highest in the K 1 year old group （335%o）, and the ~65 year old group reached the peak of the ease fatality of in- fluenza- associated disease （ 1.8 % ）. There were a little bit more males with influenza - associated disease than females. While the influenza-associated disease was present throughout the three years, among which, different years presented different mor- bidity peaks. Conclusions The influenza- associated hospitalized burden in the study area was relatively high, especially in the infants and elderly people, who would be the high risk group. These fiddings highlight the need for putting more effort into influenza prevention for both infants and elderly people.