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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
immunology and microbiology
Effect of topography on th risk of malaria infection in the Usambara Mountains, Tanzania
Transactions of the Royal Society of Tropical Medicine and Hygiene, Volume 98, No. 7, Year 2004
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Description
We investigated whether the risk of infection with malaria parasites was related to topography in the Usambara Mountains, Tanzania. Clinical surveys were carried out in seven villages, situated at altitudes from 300 m to 1650 m. Each village was mapped and incorporated into a Digital Terrain Model. Univariate analysis showed that the risk of splenomegaly declined with increasing altitude and with decreasing potential for water to accumulate. Logistic regression showed that altitude alone could correctly predict 73% of households where an occupant had an enlarged spleen or not. The inclusion of land where water is likely to accumulate within 400 m of each household increased the accuracy of the overall model slightly to 76%, but significantly improved predictions between 1000 m and 1200 m, where malaria is unstable, and likely to be epidemic. This novel approach illustrates how topography could help identify local areas prone to epidemics in the African highlands. © 2004 Royal Society of Tropical Medicine and Hygiene. Published by Elsevier Ltd. All rights reserved.
Authors & Co-Authors
Balls, M. J.
United Kingdom, Durham
Durham University
Bødker, René
Denmark, Copenhagen
Dbl -center for Health Research and Development
Thomas, Christopher James
United Kingdom, Durham
Durham University
Kisinza, William N.W.
Tanzania, Tanga
National Institute for Medical Research Tanga
Msangeni, Hamisi A.
Tanzania, Tanga
National Institute for Medical Research Tanga
Lindsay, Steve W.
United Kingdom, Durham
Durham University
Denmark, Copenhagen
Dbl -center for Health Research and Development
Statistics
Citations: 112
Authors: 6
Affiliations: 3
Identifiers
Doi:
10.1016/j.trstmh.2003.11.005
ISSN:
00359203
Research Areas
Environmental
Health System And Policy
Infectious Diseases
Study Design
Cross Sectional Study
Study Locations
Tanzania