Applying the COM-B behaviour change model to a pilot study delivering volatile pyrethroid spatial repellents and insecticide-treated clothing to forest-exposed populations in Mondulkiri Province, Cambodia.
Behaviour change theory
COM-B model
Forest malaria, Cambodia
High risk population
Insecticide treated clothing
Malaria elimination
Passive emanator
Spatial repellent
Volatile pyrethroid
Journal
Malaria journal
ISSN: 1475-2875
Titre abrégé: Malar J
Pays: England
ID NLM: 101139802
Informations de publication
Date de publication:
01 Sep 2023
01 Sep 2023
Historique:
received:
28
04
2023
accepted:
22
08
2023
medline:
4
9
2023
pubmed:
2
9
2023
entrez:
1
9
2023
Statut:
epublish
Résumé
Southeast Asia is making tremendous progress towards their 2030 malaria elimination goal but needs new interventions to stop forest malaria. This study trials two new vector control tools, a volatile pyrethroid spatial repellent (VPSR) and insecticide-treated clothing (ITC), amongst forest-exposed populations in Mondulkiri Province Cambodia to inform their potential use for eliminating forest malaria. 21 forest-exposed individuals were given a questionnaire on their perceptions of malaria and preventive practices used, after which they trialed two products sequentially. Clothes was treated with ITC by the study team. Mixed methods were used to understand their experience, attitudes, and preferences regarding the products trialed. Quantitative data was summarized and qualitative insights were analysed using thematic analysis, applying the Capability, Opportunity, and Motivation Behaviour Change (COM-B) model and Behaviour Change Wheel Framework to identify intervention functions to support tailored product rollout amongst these populations. Study participants reported a need for protection from mosquito bites in outdoor and forest-exposed settings and perceived both products trialed to be effective for this purpose. The VPSR product was preferred when travel was not required, whereas ITC was preferred for ease of use when going to the forest, especially in rainy conditions. COM-B analysis identified that key enablers for use of both products included their perceived efficacy and ease of use, which required no skill or preparation. For barriers to use, the odour of ITC was sometimes perceived as being toxic, as well as its inability to protect uncovered skin from mosquito bites, while the perceived usefulness of the VPSR product trialed was limited by its water sensitivity in rainy forest settings. Intervention components to encourage appropriate and sustained use of these products include education about how to use these products and what to expect, persuasion to use them from community leaders and targeted channels, and enablement to facilitate convenient and affordable access. The rollout of VPSRs and ITC amongst forest-exposed populations can be useful for eliminating malaria in Southeast Asia. Study findings can be applied to increase product uptake among forest exposed populations in Cambodia, while manufacturers can aim to develop products that are rainproof, easy to use in forest settings, and have favourable odour profiles to target users.
Sections du résumé
BACKGROUND
BACKGROUND
Southeast Asia is making tremendous progress towards their 2030 malaria elimination goal but needs new interventions to stop forest malaria. This study trials two new vector control tools, a volatile pyrethroid spatial repellent (VPSR) and insecticide-treated clothing (ITC), amongst forest-exposed populations in Mondulkiri Province Cambodia to inform their potential use for eliminating forest malaria.
METHODS
METHODS
21 forest-exposed individuals were given a questionnaire on their perceptions of malaria and preventive practices used, after which they trialed two products sequentially. Clothes was treated with ITC by the study team. Mixed methods were used to understand their experience, attitudes, and preferences regarding the products trialed. Quantitative data was summarized and qualitative insights were analysed using thematic analysis, applying the Capability, Opportunity, and Motivation Behaviour Change (COM-B) model and Behaviour Change Wheel Framework to identify intervention functions to support tailored product rollout amongst these populations.
RESULTS
RESULTS
Study participants reported a need for protection from mosquito bites in outdoor and forest-exposed settings and perceived both products trialed to be effective for this purpose. The VPSR product was preferred when travel was not required, whereas ITC was preferred for ease of use when going to the forest, especially in rainy conditions. COM-B analysis identified that key enablers for use of both products included their perceived efficacy and ease of use, which required no skill or preparation. For barriers to use, the odour of ITC was sometimes perceived as being toxic, as well as its inability to protect uncovered skin from mosquito bites, while the perceived usefulness of the VPSR product trialed was limited by its water sensitivity in rainy forest settings. Intervention components to encourage appropriate and sustained use of these products include education about how to use these products and what to expect, persuasion to use them from community leaders and targeted channels, and enablement to facilitate convenient and affordable access.
CONCLUSION
CONCLUSIONS
The rollout of VPSRs and ITC amongst forest-exposed populations can be useful for eliminating malaria in Southeast Asia. Study findings can be applied to increase product uptake among forest exposed populations in Cambodia, while manufacturers can aim to develop products that are rainproof, easy to use in forest settings, and have favourable odour profiles to target users.
Identifiants
pubmed: 37658337
doi: 10.1186/s12936-023-04685-1
pii: 10.1186/s12936-023-04685-1
pmc: PMC10472618
doi:
Substances chimiques
Insecticides
0
Pyrethrins
0
Insect Repellents
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
251Subventions
Organisme : NIAID NIH HHS
ID : K01 AI156182
Pays : United States
Organisme : NIH HHS
ID : K01AI156182
Pays : United States
Commentaires et corrections
Type : UpdateOf
Informations de copyright
© 2023. BioMed Central Ltd., part of Springer Nature.
Références
Malar J. 2019 Feb 1;18(1):32
pubmed: 30709399
Implement Sci. 2018 Oct 22;13(1):130
pubmed: 30348165
Sci Rep. 2021 Mar 19;11(1):6458
pubmed: 33742030
Lancet. 2019 Sep 21;394(10203):1056-1112
pubmed: 31511196
Trials. 2021 Nov 21;22(1):825
pubmed: 34802455
Med Vet Entomol. 2014 Aug;28 Suppl 1:14-25
pubmed: 24912919
Clin Pharmacol Ther. 2020 May;107(5):1221-1230
pubmed: 31697848
Malar J. 2014 Sep 30;13:387
pubmed: 25269827
Malar J. 2019 Nov 27;18(1):376
pubmed: 31771587
Malar J. 2015 Jun 20;14:252
pubmed: 26088924
Lancet Infect Dis. 2023 Jan;23(1):81-90
pubmed: 36174595
Sci Rep. 2015 Nov 23;5:16837
pubmed: 26593245
Proc Natl Acad Sci U S A. 2022 Jun 28;119(26):e2118283119
pubmed: 35737833
Malar J. 2017 Feb 28;16(1):92
pubmed: 28241830
Sci Rep. 2015 Nov 17;5:16847
pubmed: 26574048
Am J Trop Med Hyg. 2019 May;100(5):1170-1178
pubmed: 30860021
Adv Parasitol. 2018;99:345-379
pubmed: 29530309
Lancet Infect Dis. 2016 Oct;16(10):1169-1177
pubmed: 27371977
PLoS Med. 2020 Aug 20;17(8):e1003177
pubmed: 32817632
Trans R Soc Trop Med Hyg. 2019 Apr 1;113(4):161-162
pubmed: 30551174
J Epidemiol. 2008;18(1):19-25
pubmed: 18305363
Nat Rev Immunol. 2022 Sep;22(9):527-528
pubmed: 35896830
PLoS One. 2014 Dec 08;9(12):e110433
pubmed: 25485850
Implement Sci. 2016 May 18;11(1):73
pubmed: 27193580
Malar J. 2020 Nov 19;19(1):413
pubmed: 33213471
Malar J. 2016 Aug 30;15(1):440
pubmed: 27577697
Malar J. 2006 Jul 27;5:63
pubmed: 16872529
Malar J. 2022 Feb 14;21(1):47
pubmed: 35164759
Malar J. 2013 Sep 17;12:329
pubmed: 24044424
Am J Trop Med Hyg. 2021 Apr 05;104(5):1917-1924
pubmed: 33819169
Environ Health Perspect. 1976 Apr;14:15-28
pubmed: 789062
Am J Trop Med Hyg. 2020 Jul;103(1):344-358
pubmed: 32431275
Implement Sci. 2011 Apr 23;6:42
pubmed: 21513547
BMJ Open. 2020 Aug 4;10(8):e037318
pubmed: 32753450
Malar J. 2018 Jul 16;17(1):265
pubmed: 30012143
Trop Med Int Health. 2010 Mar;15(3):336-41
pubmed: 20070632
Parasit Vectors. 2014 Jun 09;7:265
pubmed: 24912923
Malar J. 2017 Oct 13;16(1):412
pubmed: 29029614
Trials. 2022 Apr 5;23(1):260
pubmed: 35382858
Acta Trop. 2008 Jun;106(3):207-12
pubmed: 18471797