摘要
目的探索重庆市流行性乙型脑炎(简称乙脑)发病在空间有无聚集性和聚集类型,为发现乙脑防控重点地区提供科学依据。方法收集2007-2015年传染病报告信息管理系统和乙脑监测信息报告管理系统中重庆市报告的乙脑病例,应用GeoDa1.8.10软件进行空间自相关分析。结果 2007-2015年重庆市乙脑报告发病率总体呈下降趋势,全局空间自相关分析表明2007-2012年重庆市各区县乙脑年发病率在总体上具有空间聚集性(Moran′s I>0且P<0.05)。局部自相关分析显示2007-2012年渝东南片区的武隆、彭水、酉阳和渝东片区的万州、石柱等区县发病率高值聚集,且为热点区域(P<0.05)。2013-2015年由于乙脑发病数显著降低致整体空间聚集性无统计学意义,高值聚集或热点区域也大幅缩小。结论重庆市乙脑发病的空间聚集性随发病率下降逐渐减少,部分乙脑高发热点区域仍需进一步采取各项综合防控措施减少发病。
Objective To analyze the spatial-temporal clustering mode of Japanese encephalitis（JE）in Chongqing city of China. Methods Epidemiologic data of JE cases reported from 2007 to 2015 in Chongqing city of China were collected from the Infectious Diseases Reporting Information System and the JE Surveillance Information System.Spatial autocorrelation analysis was performed using GeoDa1.8.10 software. ResultsReported incidence of JE in Chongqing city decreased annually from 2007 to 2015.Global autocorrelation analysis showed spatial clustering on the JE incidence in Chongqing city from 2007 to 2012 with index Moran＇s I greater than zero and Pvalue less than 0.05.Local measures of spatial association found that several south-east and east counties（Wulong,Pengshui,Youyang,Wanzhou and Shizhu）were high-high regions clustered and also as hot spots（P〈0.05）from 2007 to 2012.There was no significant clustering mode from 2013 to 2015 due to the lower JE incidence and areas of high-high regions and hot spots were also greatly shrunk during this period. Conclusions Cluster pattern of JE incidence in Chongqing city of China was not significant as incidence rates decreased sharply in recent years.JE prevention and control strategies should still be strengthened in those hot spot areas.
作者
姚宁
王青
周春碚
YAO Ning;WANG Qing;ZHOU Chun-bei(Center for Disease Control and Prevention of Chongqing City, Chongqing 400042, Chin)
出处
《中国病毒病杂志》
CAS
2018年第2期135-139,共5页
Chinese Journal of Viral Diseases
关键词
乙型脑炎
发病率
空间相关
聚集性
热点区域
Japanese encephalitis
Incidence
Spatial autocorrelation
Clustering
Hot spot areas
