2009—2010年青海省新甲型H1N1流感流行特征分析

Analysis on the Epidemic Characteristics of H1N1 Influenza in Qinghai in 2009—2010

目的分析2009—2010年新甲型H1N1流感在青海省的流行情况。方法收集"中国流感监测信息系统"中青海省报告的甲型H1N1流感病原学监测数据和全国第6次人口普查人口数据资料,采用Excel 2003软件建立数据库进行统计分析。结果全省确诊甲型H1N1流感2 034例,发病高峰在2009年9—10月。西宁市标化发病率为78.48例/10万,为全省各地最高。男性甲型H1N1流感发病率高于女性,差异有统计学意义(χ2=1 190.9150,P<0.0001)。在控制了性别因素的影响后,甲型H1N1流感发病率随年龄增加而降低,差异有统计学意义(χ2=36.5890,P<0.0001)。结论青海省甲型H1N1流感发病高峰在2009年9月份出现,较往年普通季节性流感提前,病例主要集中在西宁地区,发病率男性较女性高并随年龄增加而降低。

Objectives To analyze the incidence of H1N1 influenza in Qinghai in 2009-2010. Methods The data on the surveillance of etiology and epidemiology of H1N1 influenza collected from the ＂ China information system for surveillance of influenza＂ were analyzed with the data from the Sixth National Census by Excel 2003. Results The peak incidence was in September-October in 2009 and the diagnosis of 2 034 H1N1 influenza cases was confirmed. The standardized incidence of H1 N1 influenza in Xining was 84. 8 / 106 , the highest rate in Qinghai Province. The incidence in male was higher than that in female （X2 = 1190. 9150,P 〈 0. 0001 ） . The incidence was decreased with the age increased （X2 = 36. 5890,P 〈 0. 0001 ）. Conclusions The peak incidence of H1N1 influenza was appeared in September in 2009, earlier than the usual seasonal flu in the past. The incidence of males was higher than females, the incidence deereased with the increase of age.