spatial analysis of land cover determinants of malaria incidence in the ashanti region, ghana空间分析的土地覆盖的决定因素在阿善堤地区疟疾发病率,加纳.pdf

Spatial Analysis of Land Cover Determinants of Malaria Incidence in the Ashanti Region, Ghana 1 1 3 3 1 Anne Caroline Krefis *, Norbert Georg Schwarz , Bernard Nkrumah , Samuel Acquah , Wibke Loag , 5 3 4 2 ¨ 1 Jens Oldeland , Nimako Sarpong , Yaw Adu-Sarkodie , Ulrich Ranft , Jurgen May 1 Infectious Disease Epidemiology, Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany, 2 IUF - Leibniz Research Institute for Environmental Medicine, ¨ ¨ Heinrich Heine University Dusseldorf, Dusseldorf, Germany, 3 Kumasi Centre for Collaborative Research in Tropical Medicine, Kumasi, Ghana, 4 School of Medical Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana, 5 Biocentre Klein Flottbek and Botanical Garden, University of Hamburg, Hamburg, Germany Abstract Malaria belongs to the infectious diseases with the highest morbidity and mortality worldwide. As a vector-borne disease malaria distribution is strongly influenced by environmental factors. The aim of this study was to investigate the association between malaria risk and different land cover classes by using high-resolution multispectral Ikonos images and Poisson regression analyses. The association of malaria incidence with land cover around 12 villages in the Ashanti Region, Ghana, was assessed in 1,988 children ,15 years of age. The median malaria incidence was 85.7 per 1,000 inhabitants and year (range 28.4–272.7). Swampy areas and banana/plantain production in the proximity of villages were strong predictors of a high malaria incidence. An increase of 10% of swampy area coverage in the 2 km radius ar