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Heterogeneous decrease in malaria prevalence in children over a six-year period in south-western Uganda
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Heterogeneous decrease in malaria prevalence in children over a six-year period in south-western Uganda
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Journal Article
Heterogeneous decrease in malaria prevalence in children over a six-year period in south-western Uganda
2011
Overview
Background
Malaria is a major public health problem, especially for children. However, recent reports suggest a decline in the malaria burden. The aim of this study was to assess the change in the prevalence of malaria infection among children below five years of age between 2004 and 2010 in a mesoendemic area of Uganda and to analyse the risk factors of malaria infection.
Methods
Two cross-sectional surveys were conducted in 2004 and in 2010 at the end of the rainy and dry seasons to measure the prevalence of
P. falciparum
infection among children less than five years of age. Rapid diagnostic tests and blood smears were used to diagnose malaria infection. In 2010, sampling was stratified by urban and rural areas. In each selected household, knowledge of malaria and bed nets, and bed net ownership and use, were assessed.
Results
In 2004 and 2010, respectively, a total of 527 and 2,320 (999 in the urban area and 1,321 in rural areas) children less than five years old were enrolled. Prevalence of malaria infection declined from 43% (95% CI: 34-52) in 2004, to 23% (95% CI: 17-30) in rural areas in 2010 and 3% (95% CI: 2-5) in the urban area in 2010. From the rainy to dry season in 2010, prevalence decreased from 23% to 10% (95% CI: 6-14) in rural areas (
P
= 0.001) and remained stable from 3% to 4% (95% CI: 1-7) in the urban area (
P
= 0.9). The proportion of households reporting ownership and use of at least one bed net increased from 22.9% in 2004 to 64.7% in the urban area and 44.5% in rural areas in 2010 (
P
< 0.001). In 2010, the risk of malaria infection was consistently associated with child age and household wealth. In rural areas, malaria infection was also associated with geographic factors.
Conclusions
This study reports a significant drop in the prevalence of malaria infection among children below five years of age, paralleled by an uptake in bed-net use. However, prevalence remains unacceptably high in rural areas and is strongly associated with poverty.
Publisher
BioMed Central,BioMed Central Ltd,Springer Nature B.V,BMC
Subject
/ Area
/ Biomedical and Life Sciences
/ Children
/ Diagnostic Tests, Routine - methods
/ GPS
/ Humans
/ Infant
/ Malaria
/ Methods
/ Poverty
/ Prevalence studies (Epidemiology)
/ Seasons
/ Surveys
/ Uptake
