Acute and chronic effects of particles on hospital admissions in New-England.

<h4>Background</h4>Many studies have reported significant associations between exposure to PM(2.5) and hospital admissions, but all have focused on the effects of short-term exposure. In addition all these studies have relied on a limited number of PM(2.5) monitors in their study regions...

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Autores principales:	Itai Kloog, Brent A Coull, Antonella Zanobetti, Petros Koutrakis, Joel D Schwartz
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2012
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/573a2961bc014d208e46c08fbb07d184
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spelling	oai:doaj.org-article:573a2961bc014d208e46c08fbb07d1842021-11-18T07:21:58ZAcute and chronic effects of particles on hospital admissions in New-England.1932-620310.1371/journal.pone.0034664https://doaj.org/article/573a2961bc014d208e46c08fbb07d1842012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22529923/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Background</h4>Many studies have reported significant associations between exposure to PM(2.5) and hospital admissions, but all have focused on the effects of short-term exposure. In addition all these studies have relied on a limited number of PM(2.5) monitors in their study regions, which introduces exposure error, and excludes rural and suburban populations from locations in which monitors are not available, reducing generalizability and potentially creating selection bias.<h4>Methods</h4>Using our novel prediction models for exposure combining land use regression with physical measurements (satellite aerosol optical depth) we investigated both the long and short term effects of PM(2.5) exposures on hospital admissions across New-England for all residents aged 65 and older. We performed separate Poisson regression analysis for each admission type: all respiratory, cardiovascular disease (CVD), stroke and diabetes. Daily admission counts in each zip code were regressed against long and short-term PM(2.5) exposure, temperature, socio-economic data and a spline of time to control for seasonal trends in baseline risk.<h4>Results</h4>We observed associations between both short-term and long-term exposure to PM(2.5) and hospitalization for all of the outcomes examined. In example, for respiratory diseases, for every 10-µg/m(3) increase in short-term PM(2.5) exposure there is a 0.70 percent increase in admissions (CI = 0.35 to 0.52) while concurrently for every 10-µg/m(3) increase in long-term PM(2.5) exposure there is a 4.22 percent increase in admissions (CI = 1.06 to 4.75).<h4>Conclusions</h4>As with mortality studies, chronic exposure to particles is associated with substantially larger increases in hospital admissions than acute exposure and both can be detected simultaneously using our exposure models.Itai KloogBrent A CoullAntonella ZanobettiPetros KoutrakisJoel D SchwartzPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 4, p e34664 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Itai Kloog Brent A Coull Antonella Zanobetti Petros Koutrakis Joel D Schwartz Acute and chronic effects of particles on hospital admissions in New-England.
description	<h4>Background</h4>Many studies have reported significant associations between exposure to PM(2.5) and hospital admissions, but all have focused on the effects of short-term exposure. In addition all these studies have relied on a limited number of PM(2.5) monitors in their study regions, which introduces exposure error, and excludes rural and suburban populations from locations in which monitors are not available, reducing generalizability and potentially creating selection bias.<h4>Methods</h4>Using our novel prediction models for exposure combining land use regression with physical measurements (satellite aerosol optical depth) we investigated both the long and short term effects of PM(2.5) exposures on hospital admissions across New-England for all residents aged 65 and older. We performed separate Poisson regression analysis for each admission type: all respiratory, cardiovascular disease (CVD), stroke and diabetes. Daily admission counts in each zip code were regressed against long and short-term PM(2.5) exposure, temperature, socio-economic data and a spline of time to control for seasonal trends in baseline risk.<h4>Results</h4>We observed associations between both short-term and long-term exposure to PM(2.5) and hospitalization for all of the outcomes examined. In example, for respiratory diseases, for every 10-µg/m(3) increase in short-term PM(2.5) exposure there is a 0.70 percent increase in admissions (CI = 0.35 to 0.52) while concurrently for every 10-µg/m(3) increase in long-term PM(2.5) exposure there is a 4.22 percent increase in admissions (CI = 1.06 to 4.75).<h4>Conclusions</h4>As with mortality studies, chronic exposure to particles is associated with substantially larger increases in hospital admissions than acute exposure and both can be detected simultaneously using our exposure models.
format	article
author	Itai Kloog Brent A Coull Antonella Zanobetti Petros Koutrakis Joel D Schwartz
author_facet	Itai Kloog Brent A Coull Antonella Zanobetti Petros Koutrakis Joel D Schwartz
author_sort	Itai Kloog
title	Acute and chronic effects of particles on hospital admissions in New-England.
title_short	Acute and chronic effects of particles on hospital admissions in New-England.
title_full	Acute and chronic effects of particles on hospital admissions in New-England.
title_fullStr	Acute and chronic effects of particles on hospital admissions in New-England.
title_full_unstemmed	Acute and chronic effects of particles on hospital admissions in New-England.
title_sort	acute and chronic effects of particles on hospital admissions in new-england.
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/573a2961bc014d208e46c08fbb07d184
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Acute and chronic effects of particles on hospital admissions in New-England.

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