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. 2024 Dec 24;52(1):99.
doi: 10.1186/s41182-024-00669-2.

Higher temperatures and being an ethnic minority reduce mosquito net use in Lao PDR: an analysis of Lao PDR's Multiple Indicator Cluster Survey and Earth observation satellite data

Wills Peter Otieno  1 , Eunice Abena Kwatemaa Ankapong  1 , Kanae Nomura  1 , Emilie Louise Akiko Matsumoto-Takahashi  2   3
Affiliations

Higher temperatures and being an ethnic minority reduce mosquito net use in Lao PDR: an analysis of Lao PDR's Multiple Indicator Cluster Survey and Earth observation satellite data

Wills Peter Otieno et al. Trop Med Health. .

Abstract

Background: Malaria remains the leading cause of under-five morbidity and mortality in low- and middle-income countries. Sleeping under mosquito nets, especially insecticide-treated nets (ITNs), is one of the best ways to prevent malaria as they form a physical and chemical barrier against mosquitoes. Therefore, the present study aimed to assess not only mosquito net use, but also how environmental factors, specifically land surface temperature, contribute to malaria prevention among households with children under 5 years of age in Lao PDR.

Methods: The most recent Multiple Indicator Cluster Survey datasets of Lao PDR 2017 and the Japan Aerospace Exploration Agency (JAXA) Public Health Monitoring and Analysis Platform (JPMAP) were used. Data from 51,948 households were used in the analysis. A bivariate logistic regression analysis was followed by a multivariate logistic regression analysis to determine the factors influencing mosquito net use with children under five.

Results: In this study, 77.8% of all households with children under 5 years of age slept under mosquito nets. Of these, 80.5% were ITNs (Olyset, Permanent, and other brands). Multivariate logistic regression analysis revealed that mosquito net use was significantly associated with the land surface temperature, ethno-linguistic group (Lao-Tai, Mon-Khmer, Hmong-Mien, Chinese-Tibetan, and other), education level of the household head, and wealth index quintile.

Conclusions: The analysis of the present study suggested measures to intensify the use of mosquito nets with an emphasis on ethnic minorities living in hot areas to bring Lao PDR closer to the day that mosquito-borne infections such as malaria can be eliminated.

Keywords: Earth observation satellite data; Lao PDR; Malaria; Mosquito net; Multiple Indicator Cluster Survey.

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Conflict of interest statement

Declarations. Ethics approval and consent to participate: Not applicable because the present study used publicly available epidemiological and Earth Observation satellite data and did not involve the direct participation of research subjects. Consent for publication: Not applicable. Competing interests: The authors declare that they have no competing interests.

Figures

Fig. 1
Fig. 1
Land surface temperature (LST) map per province of Lao PDR. On this image, the temperatures are in °C
See this image and copyright information in PMC

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