Seasonal aspects of weight-for-age in young children in Zimbabwe
Wright, J.A., Vaze, P., Ferro-Luzzi, A., Gundry, S.W., Russell, G., Mucavele, P. and Nyatsanza, J. (2001) Seasonal aspects of weight-for-age in young children in Zimbabwe. Public Health Nutrition, 4, (3), 757 -764. (doi:10.1079/PHN2000100).
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Objective: To identify the season with the highest prevalence of underweight among
young children and to examine geographical variation in seasonality of underweight.
Design: This analysis is based on monthly data from a clinic-based growth
monitoring programme that forms part of the National Health Information System.
A regression-based technique is used to identify seasonal patterns in both
underweight prevalence and attendance nationally and in 60 different districts.
Setting: The analysis covers the period 1988±1995 and is based in Zimbabwe.
Subjects: The analysis is based on weight-for-age measurements of Zimbabwean
children less than 5 years old, who attended health centres as part of a growth
Results: Nationally, a small but significant increase in levels of underweight takes
place during January±March. Participation in growth monitoring also varies
seasonally and could account for the increase observed. No evidence of seasonal
variation in underweight prevalence is found in the majority of districts studied,
although 11 of the districts showed a similar pattern to the national data set. This
peak in the incidence of poor nutritional status also coincides with the period of food
scarcity before harvest, which is also associated with higher prevalence of diarrhoea
and malaria. No differences in seasonality of under-nutrition were found between
districts with predominantly subsistence agriculture and those with more commercial
forms of agriculture.
Conclusions: Seasonal variation in child weight-for-age exists in some parts of
Zimbabwe, but its effects on cross-sectional prevalence studies are likely to be small.
There are no readily discernible differences between areas that show evidence of
seasonality in levels of underweight and those that do not.
|Keywords:||seasonality, weight-for-age, growth monitoring, Zimbabwe|
|Subjects:||G Geography. Anthropology. Recreation > G Geography (General)
G Geography. Anthropology. Recreation > GE Environmental Sciences
G Geography. Anthropology. Recreation > GB Physical geography
|Divisions:||University Structure - Pre August 2011 > School of Geography > Remote Sensing and Spatial Analysis
|Date Deposited:||01 Aug 2008|
|Last Modified:||01 Jun 2011 04:57|
|Contact Email Address:||J.A.Wright@soton.ac.uk|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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