2009—2012年滨海新区(塘沽)哨点医院流感样病例流行特征分析

Epidemiological analysis of influenza from sentinel hospital in Tianjin Binhai New Area( Tanggu) during 2009-2012

目的了解天津市塘沽区流行性感冒(以下简称流感)的流行规律,为预防和控制流感提供科学依据。方法收集2009—2012年流感样病例(ILI)的百分比监测数据,分析ILI占门诊就诊病例的百分比(ILI%),并用SPSS 15.0进行统计分析。结果 2009—2012年哨点医院共报告流感样病例29 553例,占门急诊就诊病例总数(1 673 458例)的1.77%。2009—2012年4个监测年度ILI%分别为7.76%、1.47%、0.82%和0.79%,病例主要集中在≤24岁的儿童和青少年,占病例总数的82.61%;2009年10—12月份呈现1个高峰,2010—2012年流感疫情平稳;发热门诊ILI%最高,为45.14%。结论塘沽区2009—2012年哨点医院ILI%呈下降趋势,流感发病相对稳定,未发生大规模的暴发流行,但老年人ILI%呈上升趋势,提示应重点关注该人群的疫苗接种工作。

[ Objective ] To understand the epidemiological characteristics of influenza in Tanggu of Tianjin City, and provide the scientific basis for influenza control and prevention. [ Methods ] The surveillance data of influenza like illness （ILI） from 2009-2012 were collected for the analysis of percentage of ILI outpatients （ ILI% ）, and the results were analyzed by SPSS 15.0. [ Results ] During 2009-2012, a total of 29 553 flu-like cases were reported in sentinel hospital and clinics, accounting for 1.77% of the total 1 673 458 cases reported. Influenza-like cases accounted for 7.76% ,1.47% ,0.82% and 0.79% from 2009 to 2012. Most cases were children and teenagers aged ~〈24 years （ 82.61% ）. The incidence peaked during October to December in 2009, and became stable from 2010-2012. ILI cases reported by fever diagnosis ward were the most （45.14%）. [ Conclusion] The ILI% showed a downward trend from national sentinel hospitals in Tanggu City from 2010-2012. The influenza activity is relatively stable without large-scale outbreak in Tanggu, but the ILI% has a upward trend in elder people, therefore, the vaccination of this group should attract more attentions.