Journal
SPATIAL AND SPATIO-TEMPORAL EPIDEMIOLOGY
Volume 21, Issue -, Pages 57-66Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.sste.2017.03.003
Keywords
Geographic information system; Geographically weighted regression; Environmental factor; Cutaneous leishmaniasis
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Objectives: This study was designed to determine the environmental factors associated with cutaneous leishmaniasis (CL) in Isfahan Province, using spatial analysis. Methods: Data of monthly CL incidence from 2010 to 2013, climate and environmental factors including: temperature, humidity, rainfall, wind speed, normalized difference vegetation index (NDVI), altitude and population density across the Isfahan's cities was used to perform spatial analysis by ordinary least square (OLS) regression and geographically weighted regression (GWR). Results: OLS revealed a significant correlation between CL incidence and five predictors including temperature, population density, wind speed, humidity and NDVI; which explained 28.6% of variation in CL incidence in the province. Considering AICc and adjusted R-2, GWR provided a better fit to the data compared with OLS. Conclusion: There was a positive correlation between temperature and population density with CL incidence in both local (city) and global (province) level. (C) 2017 Elsevier Ltd. All rights reserved.
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