Geo-additive models of childhood undernutrition in three sub-Saharan African countries
Kandala, Ngianga-Bakwin, Fahrmeir, L., Klasen, Stephan and Priebe, Jan. (2009) Geo-additive models of childhood undernutrition in three sub-Saharan African countries. Population, Space and Place, Vol.15 (No.5). pp. 461-473. ISSN 1544-8444
WRAP_Kandala_Kandala_PSP.pdf - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
Official URL: http://dx.doi.org/10.1002/psp.524
We investigate the geographical and socioeconomic determinants of childhood undernutrition in Malawi, Tanzania and Zambia, three neighbouring countries in southern Africa, using the 1992 Demographic and Health Surveys. In particular, we estimate models of undernutrition jointly for the three countries to explore regional patterns of undernutrition that transcend boundaries, while allowing for country-specific interactions. We use geo-additive regression models to flexibly model the effects of selected socioeconomic covariates and spatial effects. Inference is fully Bayesian based on recent Markov chain Monte Carlo techniques.
While the socioeconomic determinants generally confirm findings from the literature, we find distinct residual spatial patterns that are not explained by the socioeconomic determinants. In particular, there appears to be a belt transcending boundaries and running from southern Tanzania to northeastern Zambia which exhibits much worse undernutrition. These findings have important implications for planning, as well as in the search for left-out variables that might account for these residual spatial patterns.
|Item Type:||Journal Article|
|Subjects:||R Medicine > RJ Pediatrics > RJ101 Child Health. Child health services|
|Divisions:||Faculty of Medicine > Warwick Medical School > Health Sciences > Population, Evidence & Technologies (PET) > Warwick Evidence
Faculty of Medicine > Warwick Medical School > Health Sciences
Faculty of Medicine > Warwick Medical School
|Library of Congress Subject Headings (LCSH):||Malnutrition in children -- Africa, Sub-Saharan, Children -- Health and hygiene -- Africa, Sub-Saharan, Random walks (Mathematics), Bayesian statistical decision theory, Africa, Sub-Saharan -- Economic conditions, Africa, Sub-Saharan -- Social conditions|
|Journal or Publication Title:||Population, Space and Place|
|Publisher:||John Wiley & Sons Ltd.|
|Official Date:||September 2009|
|Number of Pages:||13|
|Page Range:||pp. 461-473|
|Access rights to Published version:||Open Access|
|Funder:||Deutsche Forschungsgemeinschaft (DFG), Sonderforschungsbereich 386|
Besag, J., York, Y. and Mollie, A. (1991). Bayesian Image Restoration with two Applications in Spatial Statistics (with discussion). Ann. Inst. Statist. Math., 43, 1-59.
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