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Spatial analysis of malaria in Anhui Province, China October 10, 2008

Posted by Bahadir Sahin in Calismalar (Studies), English.
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Malaria has re-emerged in Anhui Province, China, and this province was the most seriously affected by malaria during 2005-2006. It is necessary to understand the spatial distribution of malaria cases and to identify highly endemic areas for future public health planning and resource allocation in Anhui Province.

Methods: The annual average incidence at the county level was calculated using malaria cases reported between 2000 and 2006 in Anhui Province.

GIS-based spatial analyses were conducted to detect spatial distribution and clustering of malaria incidence at the county level.

Results: The spatial distribution of malaria cases in Anhui Province from 2000 to 2006 was mapped at the county level to show crude incidence, excess hazard and spatial smoothed incidence. Spatial cluster analysis suggested 10 and 24 counties were at increased risk for malaria (P<0.001) with the maximum spatial cluster sizes at <50% and <25% of the total population, respectively.

Conclusion: The application of GIS, together with spatial statistical techniques, provide a means to quantify explicit malaria risks and to further identify environmental factors responsible for the re-emerged malaria risks.

Future public health planning and resource allocation in Anhui Province should be focused on the maximum spatial cluster region.

Author: Wenyi Zhang, Liping Wang, Liqun Fang, Jiaqi Ma, Youfu Xu, Jiafu Jiang, Fengming Hui, Jianjun Wang, Song Liang, Hong Yang and Wuchun Cao
Credits/Source: Malaria Journal 2008, 7:206

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