Insecticide-treated nets and malaria in western Kenya
Author Information
Author(s): Atieli Harrysone E, Zhou Guofa, Afrane Yaw, Lee Ming-Chieh, Mwanzo Isaac, Githeko Andrew K, Yan Guiyun
Primary Institution: Kenya Medical Research Institute
Hypothesis
What factors influence the ownership and usage of insecticide-treated nets (ITNs) and their impact on malaria transmission in the highlands of western Kenya?
Conclusion
Despite high ownership of ITNs, actual usage is low, particularly in the dry season, which limits their effectiveness in controlling malaria.
Supporting Evidence
- ITN ownership was over 71%, but compliance was only 56.3%.
- Malaria prevalence was significantly lower among ITN users during the rainy season.
- Compliance with ITN usage was higher during the rainy season compared to the dry season.
Takeaway
Many people have mosquito nets to protect against malaria, but not everyone uses them, especially when it's dry and hot outside.
Methodology
Cross-sectional surveys were conducted on ITN ownership, compliance, and malaria infections in randomly sampled houses during the dry and rainy seasons of 2009.
Potential Biases
Potential bias in self-reported ITN usage and ownership.
Limitations
The study could not conduct daily surveys year-round due to logistic difficulties.
Participant Demographics
Participants included 1,160 individuals in the dry season and 1,265 in the rainy season, with a higher proportion of females and varied age groups.
Statistical Information
P-Value
<0.0001
Confidence Interval
95% CI 0.51-1.00
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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