中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
A spatial scan statistic for multiple clusters

文献类型:期刊论文

作者Li XiaoZhou(李小洲) ; Wang JinFeng ; Yang WeiZhong ; Li ZhongJie ; Lai ShengJie
刊名MATHEMATICAL BIOSCIENCES
出版日期2011
卷号233期号:2页码:135-142
关键词Geographic disease surveillance Multiple clusters Spatial scan statistic Statistical power DISEASE SURVEILLANCE TESTS
通讯作者Wang JinFeng
英文摘要 Spatial scan statistics are commonly used for geographical disease surveillance and cluster detection. While there are multiple clusters coexisting in the study area, they become difficult to detect because of clusters' shadowing effect to each other. The recently proposed sequential method showed its better power for detecting the second weaker cluster, but did not improve the ability of detecting the first stronger cluster which is more important than the second one. We propose a new extension of the spatial scan statistic which could be used to detect multiple clusters. Through constructing two or more clusters in the alternative hypothesis, our proposed method accounts for other coexisting clusters in the detecting and evaluating process. The performance of the proposed method is compared to the sequential method through an intensive simulation study, in which our proposed method shows better power in terms of both rejecting the null hypothesis and accurately detecting the coexisting clusters. In the real study of hand-foot-mouth disease data in Pingdu city, a true cluster town is successfully detected by our proposed method, which cannot be evaluated to be statistically significant by the standard method due to another cluster's shadowing effect.
收录类别SCI
资助信息MOST, China 2009ZX10004-201 2008BA156B02 2007DFC20180 2006BAK01A13;NSFC 41023 010;CAS, China KZCX2-YW-308
语种英语
公开日期2011-11-15
源URL[http://ir.igsnrr.ac.cn/handle/311030/6549]  
专题地理科学与资源研究所_研究生部
推荐引用方式
GB/T 7714
Li XiaoZhou,Wang JinFeng,Yang WeiZhong,et al. A spatial scan statistic for multiple clusters[J]. MATHEMATICAL BIOSCIENCES,2011,233(2):135-142.
APA Li XiaoZhou,Wang JinFeng,Yang WeiZhong,Li ZhongJie,&Lai ShengJie.(2011).A spatial scan statistic for multiple clusters.MATHEMATICAL BIOSCIENCES,233(2),135-142.
MLA Li XiaoZhou,et al."A spatial scan statistic for multiple clusters".MATHEMATICAL BIOSCIENCES 233.2(2011):135-142.

入库方式: OAI收割

来源:地理科学与资源研究所

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