Using inverse distance weighting in studying the distribution of endemic fluorosis in Jiangsu Province

VernacularTitle:运用反距离加权插值法研究江苏省地方性氟中毒空间分布态势
Author: Yang, WANG ; Xiao-dong, CHEN ; Cai-sheng, WANG
Publication Type:Journal Article
Keywords: Fluoride poisoning; Geographic information systems; Inverse distance weighting
From:Chinese Journal of Endemiology 2009;28(1):97-100
CountryChina
Language:Chinese
Abstract: Objective To use inverse distance weighting(IDW)in studying the distribution of endemic fluor.0sis in Jiangsu Province and evaluate the value of IDW in endemic fluorosis surveillance.Methods A geographic information system(GIS)database of endemic fluorosis was established in Jiangsu Province from the data of endemic fluorosis survevs conducted during 1982-1985.With the help of Arc View 3.3 system,IDW was applied to forecast the distribution of fluoride concentration in water and the distribution of the prevalence rate of dental fluorosis in Jiangsu Province based on the electronic map of Jiangsu Province.Results IDW was applied to forecast the distribution of endemic fluorosis in Jiangsu Province.By comparing with the result of endemic investigation in the 1980's.the forecasting Was proven to be accurate,exact and detailed.Conclusion With the application of IDW and stratified sampling,it is feasible to describe the spatial distribution of endemic fluorosis in Jiangsu Province in endemic fluorosis surveillance.