Prevalence of asymptomatic malaria at the communal level in Burkina Faso: an application of the small area estimation approach
Male
Census
Economics
Malaria Parasite
Computer applications to medicine. Medical informatics
Population
Immunology
R858-859.7
0302 clinical medicine
Sociology
Communes
Burkina Faso
Health Sciences
Prevalence
FOS: Mathematics
Pathology
Humans
Global Impact of Arboviral Diseases
Asymptomatic Infections
Global Maternal and Child Health Outcomes
Demography
Geography
Research
FOS: Clinical medicine
Confidence interval
Statistics
Spatial analysis
Public Health, Environmental and Occupational Health
Infant
Malaria
Asymptomatic
FOS: Sociology
Management
Small area estimates
Environmental health
Socioeconomics
Child, Preschool
Small-Area Analysis
Carrier State
Pediatrics, Perinatology and Child Health
Medicine
Female
Public aspects of medicine
RA1-1270
Estimation
Mathematics
DOI:
10.1186/s12963-024-00341-1
Publication Date:
2024-08-18T10:01:52Z
AUTHORS (9)
ABSTRACT
Abstract Background In malaria-endemic countries, asymptomatic malaria carriers represent an important reservoir for malaria transmission. Estimating the burden at a fine scale and identifying areas at high risk of asymptomatic carriage are important to guide malaria control strategies. This study aimed to estimate the prevalence of asymptomatic malaria at the communal level, the smallest geographical entity from which a local development policy can be driven. Methods The data used in this study came from several sources: the 2018 Multiple Indicator Cluster Survey on Malaria and the 2019 census data and environmental data available from open sources. The analysis involved a total of 5,489 children under 5 from the malaria survey and 293,715 children under 5 from the census. The estimation approach used is that of Elbers Langjouw and Langjouw (ELL). This approach consists of including data from several sources, mainly census and survey data, in a statistical model to obtain predictions at a geographical level below that of the survey, for indicators that are not measured in the population census. The method achieves this by finding correlations between common census variables and survey data. Findings The findings suggest that the spatial distribution of the prevalence of asymptomatic malaria infection is very heterogeneous across the communes. It varies from a minimum of 5.1% (with confidence interval IC95%= [3.6 ; 6.5]) in the commune of Bobo-Dioulasso to a maximum of 41.4% (IC95%=[33.5 ; 49.4]) in the commune of Djigoué. Of the 341 communes, 208 (61%) had prevalences above the national average of 20.3% (IC95%= [18.8; 21.2]). Contribution This analysis provided commune-level estimates of the prevalence of asymptomatic malaria in Burkina Faso. The results of this analysis should help to improve planning of malaria control at the communal level in Burkina Faso.
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