Reduction of malaria prevalence by indoor residual spraying: a meta-regression analysis.
Indoor residual spraying (IRS) has become an increasingly popular method of insecticide use for malaria control, and many recent studies have reported on its effectiveness in reducing malaria burden in a single community or region. There is a need for systematic review and integration of the published literature on IRS and the contextual determining factors of its success in controlling malaria. This study reports the findings of a meta-regression analysis based on 13 published studies, which were chosen from more than 400 articles through a systematic search and selection process. The summary relative risk for reducing malaria prevalence was 0.38 (95% confidence interval = 0.31-0.46), which indicated a risk reduction of 62%. However, an excessive degree of heterogeneity was found between the studies. The meta-regression analysis indicates that IRS is more effective with high initial prevalence, multiple rounds of spraying, use of DDT, and in regions with a combination of Plasmodium falciparum and P. vivax malaria.
Duke Scholars
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Related Subject Headings
- Tropical Medicine
- Regression Analysis
- Prevalence
- Malaria
- Insecticides
- Humans
- 42 Health sciences
- 32 Biomedical and clinical sciences
- 11 Medical and Health Sciences
Citation
Published In
DOI
EISSN
ISSN
Publication Date
Volume
Issue
Start / End Page
Related Subject Headings
- Tropical Medicine
- Regression Analysis
- Prevalence
- Malaria
- Insecticides
- Humans
- 42 Health sciences
- 32 Biomedical and clinical sciences
- 11 Medical and Health Sciences