2005—2012年南宁市流行性感冒流行特征分析

Analysis on epidemiological characteristics of influenza in Nanning City from 2005-2012

目的通过了解南宁市2005--2012年流行性感冒（简称流感）流行特征，为流感防控工作提供参考依据。方法采用描述流行病学的方法，对2005--2012年南宁市流感发病情况进行分析。结果2005--2012年南宁市共报告5866例流感病例，年平均发病率为11．27／10万，主要集中在3—5月，但每年的流感发病高峰有所不同。以10～19岁年龄组发病人数最多，占发病总数的64．O％；男性多于女性，男：女=1.36：1，差异有统计学意义（x2合计＝46．790，P〈0．01），职业分布以学生为主，占发病总数的74．1％。结论了解流感在该市的流行特征，加强对学生等重点人群的监测，对控制流感疫情的暴发具有重要意义。

[ Objective ] To understand the epidemiological characteristics of influenza in Nanning City from 2005-2012, provide sci- entific evidence for the prevention and control of influenza. [ Methods ] Descriptive epidemiological methods were used to analyze the epidemic characteristics of influenza in Nanning City from 2005-2012. [ Results] A total of 5 866 cases of influenza were reported in Nanning City from 2005-2012, and the average annual incidence rate was 11.27/lakh. The cases mainly concentrated in March to May, but the peak seasons changed in different years. Most of patients were people aged 10-19 years old, accounting for 64.0% of total cases. The number of male patients was greater than that of female patients, the male-to-female ratio was 1.36： 1, and the difference was significant （ X2 =46. 790,P 〈0.01 ）. The occupational distribution showed that the students accounted for 74.1% of total cases. [ Conclusion] In order to control the outbreak of influenza in Nanning city, it is important to understand the epidemio logical characteristics of influenza, and strengthen the surveillance in high-risk population （students）.