title: [Application of saTScan in detection of schistosomiasis clusters in marshland and lake areas].
abstract: OBJECTIVE
  To detect the schistosomiasis clusters in marshland and lake areas in 2008, so as to provide the reference for schistosomiasis control and the methodology for detection of cluster areas of related diseases.
  
  
  METHODS
  SaTScan was used to detect the schistosomiasis clusters based on the spatial database from GIS and related variables, including the number of current patients and population in endemic areas.
  
  
  RESULTS
  A total of 5 clusters including 39 counties (districts) were detected by SaTScan, the RRs and the Log-likelihood ratios of 3 clusters among them were over 3 and 1 000 (P < 0.05), respectively. The one with the highest RR and Log-likelihood ratio was located in the boundary of Hubei and Hunan provinces, and the cluster range there was the biggest. From there to the downstream of the Yangtze River, the area and RRs of the 5 clusters became smaller and smaller.
  
  
  CONCLUSIONS
  The 5 provinces in the marshland and lake areas are still the key spatial clusters of schistosomiasis, especially near the boundary of Hubei and Hunan provinces.
authors.affiliation: Department of Epidemiology, School of Public Health, Fudan University, Key Laboratory on Public Health Safety, Ministry of Education, Shanghai 200032, China.
authors.forename: Fei
authors.initials: F
authors.lastname: Zhao
authors.forename: Rong
authors.initials: R
authors.lastname: Zhu
authors.forename: Li-Juan
authors.initials: LJ
authors.lastname: Zhang
authors.forename: Zhi-Jie
authors.initials: ZJ
authors.lastname: Zhang
authors.forename: Yuan-Pei
authors.initials: YP
authors.lastname: Li
authors.forename: Ming-Zhen
authors.initials: MZ
authors.lastname: He
authors.forename: Yi-Biao
authors.initials: YB
authors.lastname: Zhou
authors.forename: Jia-Gang
authors.initials: JG
authors.lastname: Guo
authors.forename: Gen-Ming
authors.initials: GM
authors.lastname: Zhao
authors.forename: Qing-Wu
authors.initials: QW
authors.lastname: Jiang
mesh_terms: D000818:Animals; D002681:China / Q000453:epidemiology; D016000:Cluster Analysis; D040362:Geographic Information Systems; D006801:Humans; D060106:Lakes; D016013:Likelihood Functions; D015233:Models, Statistical; D016017:Odds Ratio; D045483:Rivers; D012552:Schistosomiasis / Q000453:epidemiology*; D012984:Software / Q000706:statistics & numerical data*; D053833:Wetlands