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Spatially varying correlation between environmental conditions and human leptospirosis in Sarawak, Malaysia

The spatial distribution of environmental conditions may influence the dynamics of vectorborne diseases like leptospirosis. This study aims to investigate the global and localised relationships between leptospirosis with selected environmental variables. The association between environmental varia...

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Main Authors: Kira, R., Lesley Maurice, Bilung, Romano, Ngui, Kasing, Apun, Lela, Binti Suut
Format: Article
Language:English
Published: y Malaysian Society of Parasitology and Tropical Medicine 2021
Subjects:
S Agriculture (General)
Online Access:http://ir.unimas.my/id/eprint/35450/1/Publication_2021_Kira%20et%20al_Spatial_Leptospirosis.pdf
http://ir.unimas.my/id/eprint/35450/
https://msptm.org/files/Vol38No2/tb-38-2-034-Kira-R.pdf
https://doi.org/10.47665/tb.38.2.034
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spelling my.unimas.ir.354502021-06-09T08:11:25Z http://ir.unimas.my/id/eprint/35450/ Spatially varying correlation between environmental conditions and human leptospirosis in Sarawak, Malaysia Kira, R. Lesley Maurice, Bilung Romano, Ngui Kasing, Apun Lela, Binti Suut S Agriculture (General) The spatial distribution of environmental conditions may influence the dynamics of vectorborne diseases like leptospirosis. This study aims to investigate the global and localised relationships between leptospirosis with selected environmental variables. The association between environmental variables and the spatial density of geocoded leptospirosis cases was determined using global Poisson regression (GPR) and geographically weighted Poisson regression (GWPR). A higher prevalence of leptospirosis was detected in areas with higher water vapour pressure (exp(â): 1.12; 95% CI: 1.02 - 1.25) and annual precipitation (exp(â): 1.15; 95% CI: 1.02 - 1.31), with lower precipitation in the driest month (exp(â): 0.85; 95% CI: 0.75 – 0.96) and the wettest quarter (exp(â): 0.88; 95% CI: 0.77 – 1.00). Water vapor pressure (WVP) varied the most in the hotspot regions with a standard deviation of 0.62 (LQ: 0.15; UQ; 0.99) while the least variation was observed in annual precipitation (ANNP) with a standard deviation of 0.14 (LQ: 0.11; UQ; 0.30). The reduction in AICc value from 519.73 to 443.49 indicates that the GWPR model is able to identify the spatially varying correlation between leptospirosis and selected environmental variables. The results of the localised relationships in this study could be used to formulate spatially targeted interventions. This would be particularly useful in localities with a strong environmental or socio-demographical determinants for the transmission of leptospirosis. y Malaysian Society of Parasitology and Tropical Medicine 2021 Article PeerReviewed text en http://ir.unimas.my/id/eprint/35450/1/Publication_2021_Kira%20et%20al_Spatial_Leptospirosis.pdf Kira, R. and Lesley Maurice, Bilung and Romano, Ngui and Kasing, Apun and Lela, Binti Suut (2021) Spatially varying correlation between environmental conditions and human leptospirosis in Sarawak, Malaysia. Tropical Biomedicine, 38 (2). pp. 31-39. ISSN 0127-5720 https://msptm.org/files/Vol38No2/tb-38-2-034-Kira-R.pdf https://doi.org/10.47665/tb.38.2.034
institution Universiti Malaysia Sarawak
building Centre for Academic Information Services (CAIS)
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sarawak
content_source UNIMAS Institutional Repository
url_provider http://ir.unimas.my/
language English
topic S Agriculture (General)
spellingShingle S Agriculture (General)
Kira, R.
Lesley Maurice, Bilung
Romano, Ngui
Kasing, Apun
Lela, Binti Suut
Spatially varying correlation between environmental conditions and human leptospirosis in Sarawak, Malaysia
description The spatial distribution of environmental conditions may influence the dynamics of vectorborne diseases like leptospirosis. This study aims to investigate the global and localised relationships between leptospirosis with selected environmental variables. The association between environmental variables and the spatial density of geocoded leptospirosis cases was determined using global Poisson regression (GPR) and geographically weighted Poisson regression (GWPR). A higher prevalence of leptospirosis was detected in areas with higher water vapour pressure (exp(â): 1.12; 95% CI: 1.02 - 1.25) and annual precipitation (exp(â): 1.15; 95% CI: 1.02 - 1.31), with lower precipitation in the driest month (exp(â): 0.85; 95% CI: 0.75 – 0.96) and the wettest quarter (exp(â): 0.88; 95% CI: 0.77 – 1.00). Water vapor pressure (WVP) varied the most in the hotspot regions with a standard deviation of 0.62 (LQ: 0.15; UQ; 0.99) while the least variation was observed in annual precipitation (ANNP) with a standard deviation of 0.14 (LQ: 0.11; UQ; 0.30). The reduction in AICc value from 519.73 to 443.49 indicates that the GWPR model is able to identify the spatially varying correlation between leptospirosis and selected environmental variables. The results of the localised relationships in this study could be used to formulate spatially targeted interventions. This would be particularly useful in localities with a strong environmental or socio-demographical determinants for the transmission of leptospirosis.
format Article
author Kira, R.
Lesley Maurice, Bilung
Romano, Ngui
Kasing, Apun
Lela, Binti Suut
author_facet Kira, R.
Lesley Maurice, Bilung
Romano, Ngui
Kasing, Apun
Lela, Binti Suut
author_sort Kira, R.
title Spatially varying correlation between environmental conditions and human leptospirosis in Sarawak, Malaysia
title_short Spatially varying correlation between environmental conditions and human leptospirosis in Sarawak, Malaysia
title_full Spatially varying correlation between environmental conditions and human leptospirosis in Sarawak, Malaysia
title_fullStr Spatially varying correlation between environmental conditions and human leptospirosis in Sarawak, Malaysia
title_full_unstemmed Spatially varying correlation between environmental conditions and human leptospirosis in Sarawak, Malaysia
title_sort spatially varying correlation between environmental conditions and human leptospirosis in sarawak, malaysia
publisher y Malaysian Society of Parasitology and Tropical Medicine
publishDate 2021
url http://ir.unimas.my/id/eprint/35450/1/Publication_2021_Kira%20et%20al_Spatial_Leptospirosis.pdf
http://ir.unimas.my/id/eprint/35450/
https://msptm.org/files/Vol38No2/tb-38-2-034-Kira-R.pdf
https://doi.org/10.47665/tb.38.2.034
_version_ 1702173277527474176
score 13.211869

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