Is housing quality associated with malaria incidence among young children and mosquito vector numbers? Evidence from Korogwe, Tanzania.

<h4>Background</h4>Several studies conducted in Northeast Tanzania have documented declines in malaria transmission even before interventions were scaled up. One explanation for these reductions may be the changes in socio-environmental conditions associated with economic development, an...

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Autores principales:	Jenny X Liu, Teun Bousema, Brittany Zelman, Samwel Gesase, Ramadhan Hashim, Caroline Maxwell, Daniel Chandramohan, Roly Gosling
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2014
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/615baecbe7104d518094703612812b96
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spelling	oai:doaj.org-article:615baecbe7104d518094703612812b962021-11-18T08:33:46ZIs housing quality associated with malaria incidence among young children and mosquito vector numbers? Evidence from Korogwe, Tanzania.1932-620310.1371/journal.pone.0087358https://doaj.org/article/615baecbe7104d518094703612812b962014-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24505285/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Background</h4>Several studies conducted in Northeast Tanzania have documented declines in malaria transmission even before interventions were scaled up. One explanation for these reductions may be the changes in socio-environmental conditions associated with economic development, and in particular improvements in housing construction.<h4>Objective</h4>This analysis seeks to identify (1) risk factors for malaria incidence among young children and (2) household and environmental factors associated with mosquito vector numbers collected in the child's sleeping area. Both analyses focus on housing construction quality as a key determinant.<h4>Methodology</h4>For 435 children enrolled in a larger trial of intermittent preventive treatment for malaria in infants in the Korogwe District in Tanga, Northeastern Tanzania, detailed information on their dwelling characteristics were collected in the last year of the trial. Principal components analysis was used to construct an index of housing structure quality and converted to quintile units for regression analysis. Univariate and multivariate random effects negative binomial regressions were used to predict risk factors for child malaria incidence and the mean total number of indoor female Anopheles gambiae and funestus mosquitoes collected per household across three occasions.<h4>Findings</h4>Building materials have substantially improved in Korogwe over time. Multivariate regressions showed that residing in rural areas (versus urban) increased malaria incidence rates by over three-fold and mean indoor female A. gambiae and funestus numbers by nearly two-fold. Compared to those residing in the lowest quality houses, children residing in the highest quality houses had one-third lower malaria incidence rates, even when wealth and rural residence were controlled for. Living in the highest quality houses reduced vector numbers while having cattle near the house significantly increased them.<h4>Conclusions</h4>Results corroborate findings from other studies that show associations between malaria incidence and housing quality; associations were concentrated amongst the highest quality houses.Jenny X LiuTeun BousemaBrittany ZelmanSamwel GesaseRamadhan HashimCaroline MaxwellDaniel ChandramohanRoly GoslingPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 9, Iss 2, p e87358 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jenny X Liu Teun Bousema Brittany Zelman Samwel Gesase Ramadhan Hashim Caroline Maxwell Daniel Chandramohan Roly Gosling Is housing quality associated with malaria incidence among young children and mosquito vector numbers? Evidence from Korogwe, Tanzania.
description	<h4>Background</h4>Several studies conducted in Northeast Tanzania have documented declines in malaria transmission even before interventions were scaled up. One explanation for these reductions may be the changes in socio-environmental conditions associated with economic development, and in particular improvements in housing construction.<h4>Objective</h4>This analysis seeks to identify (1) risk factors for malaria incidence among young children and (2) household and environmental factors associated with mosquito vector numbers collected in the child's sleeping area. Both analyses focus on housing construction quality as a key determinant.<h4>Methodology</h4>For 435 children enrolled in a larger trial of intermittent preventive treatment for malaria in infants in the Korogwe District in Tanga, Northeastern Tanzania, detailed information on their dwelling characteristics were collected in the last year of the trial. Principal components analysis was used to construct an index of housing structure quality and converted to quintile units for regression analysis. Univariate and multivariate random effects negative binomial regressions were used to predict risk factors for child malaria incidence and the mean total number of indoor female Anopheles gambiae and funestus mosquitoes collected per household across three occasions.<h4>Findings</h4>Building materials have substantially improved in Korogwe over time. Multivariate regressions showed that residing in rural areas (versus urban) increased malaria incidence rates by over three-fold and mean indoor female A. gambiae and funestus numbers by nearly two-fold. Compared to those residing in the lowest quality houses, children residing in the highest quality houses had one-third lower malaria incidence rates, even when wealth and rural residence were controlled for. Living in the highest quality houses reduced vector numbers while having cattle near the house significantly increased them.<h4>Conclusions</h4>Results corroborate findings from other studies that show associations between malaria incidence and housing quality; associations were concentrated amongst the highest quality houses.
format	article
author	Jenny X Liu Teun Bousema Brittany Zelman Samwel Gesase Ramadhan Hashim Caroline Maxwell Daniel Chandramohan Roly Gosling
author_facet	Jenny X Liu Teun Bousema Brittany Zelman Samwel Gesase Ramadhan Hashim Caroline Maxwell Daniel Chandramohan Roly Gosling
author_sort	Jenny X Liu
title	Is housing quality associated with malaria incidence among young children and mosquito vector numbers? Evidence from Korogwe, Tanzania.
title_short	Is housing quality associated with malaria incidence among young children and mosquito vector numbers? Evidence from Korogwe, Tanzania.
title_full	Is housing quality associated with malaria incidence among young children and mosquito vector numbers? Evidence from Korogwe, Tanzania.
title_fullStr	Is housing quality associated with malaria incidence among young children and mosquito vector numbers? Evidence from Korogwe, Tanzania.
title_full_unstemmed	Is housing quality associated with malaria incidence among young children and mosquito vector numbers? Evidence from Korogwe, Tanzania.
title_sort	is housing quality associated with malaria incidence among young children and mosquito vector numbers? evidence from korogwe, tanzania.
publisher	Public Library of Science (PLoS)
publishDate	2014
url	https://doaj.org/article/615baecbe7104d518094703612812b96
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Is housing quality associated with malaria incidence among young children and mosquito vector numbers? Evidence from Korogwe, Tanzania.

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