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Epidemiol Infect. 2014 Sep;142(9):1859-68. doi: 10.1017/S095026881300277X. Epub 2013 Oct 30.

Association of climate variability and childhood diarrhoeal disease in rural Bangladesh, 2000-2006.

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Department of Environmental Sciences and Engineering, Gillings School of Global Public Health,University of North Carolina at Chapel Hill,NC,USA.
International Centre for Diarrhoeal Disease Research,Bangladesh.
Department of Geography,University of North Carolina at Chapel Hill,NC,USA.


This study examined the effects of meteorological factors, particularly, extreme weather events, on the prevalence of childhood diarrhoeal disease in Matlab, Bangladesh. Logistic regression models were used to examine impacts of temperature, rainfall and the extreme weather factors (the number of hot days and days with heavy rainfall) on childhood diarrhoea from 2000 to 2006 at the bari (cluster of dwellings) level. The results showed that the increases in the number of hot days and days with heavy rainfall were associated with an increase in daily diarrhoea cases by 0·8-3·8% and 1-6·2%, respectively. The results from multivariable stepwise models showed that the extreme weather factors were still positively associated with childhood diarrhoea, while the associations for average temperature and rainfall could be negative after other variables were controlled. The findings showed that not only the intensity, but also the frequency of extreme weather events had significant effects on childhood diarrhoea.

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