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Assessing environmental factors associated with regional schistosomiasis prevalence in Anhui Province,Peoples’Republic of China using a geographical detector method

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Infectious Diseases of Poverty 2017年第1期6卷 761-768页

作者： Yi Hu Congcong Xia Shizhu Li Michael PWard Can Luo Fenghua Gao Qizhi Wang Shiqing Zhang Zhijie Zhang Department of Epidemiology School of Public HealthFudan UniversityShanghai 200032China Key Laboratory of Public Health Safety Ministry of EducationShanghaiChina Laboratory for spatial analysis and Modeling School of Public HealthFudan UniversityShanghaiChina Collaborative Innovation Center of Social Risks Governance in Health School of Public HealthFudan UniversityShanghaiChina National Institute of Parasitic Diseases Chinese Center for Disease Control and PreventionKey Laboratory of Parasite and Vector BiologyMinistry of HealthWHO Collaborating Center for Tropical diseasesShanghaiPeople’s Republic of China Faculty of Veterinary Science The University of Sydney NSWSydneyAustralia Department of Environmental Art and Architecture Changsha Environmental Protection Vocational Technical CollegeChangshaHunanPeople’s Republic of China Anhui Institute of Parasitic Diseases WuhuPeople’s Republic of China No.130 Dong’an Road Xuhui DistrictShanghai 200032China

Background:Schistosomiasis is a water-borne disease caused by trematode worms belonging to genus Schistosoma,which is prevalent most of the developing *** of the disease is usually associated with multiple biological characteristics and social factors but also factors can play a *** studies have assessed the exact and interactive influence of each factor promoting schistosomiasis ***:We used a series of different detectors(i.e.,specific detector,risk detector,ecological detector and interaction detector)to evaluate separate and interactive effects of the environmental factors on schistosomiasis ***,(i)specific detector quantifies the impact of a risk factor on an observed spatial disease pattern,which were ranked statistically by a value of Power of Determinate(PD)calculation;(ii)risk detector detects high risk areas of a disease on the condition that the study area is stratified by a potential risk factor;(iii)ecological detector explores whether a risk factor is more significant than another in controlling the spatial pattern of a disease;(iv)interaction detector probes whether two risk factors when taken together weaken or enhance one another,or whether they are independent in developing a *** data of schistosomiasis based on conventional surveys were obtained at the county level from the health authorities in Anhui Province,China and used in combination with information from Chinese weather stations and internationally available environmental ***:The specific detector identified various factors of potential importance as follows:Proximity to Yangtze River(0.322)>Land cover(0.285)>sunshine hours(0.256)>population density(0.109)>altitude(0.090)>the normalized different vegetation index(NDVI)(0.077)>land surface temperature at daytime(LST_(day))(0.007).The risk detector indicated that areas of schistosomiasis high risk were located within a buffer distance of 50 km from Yangtze ***

关键词： Schistosoma japonicum Geographical detector spatial variation analysis Environmental factors Geographic information systems China

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