Acute and Chronic Effects of Particles on Hospital Admissions in New England

DSpace/Manakin Repository

Acute and Chronic Effects of Particles on Hospital Admissions in New England

Citable link to this page


Title: Acute and Chronic Effects of Particles on Hospital Admissions in New England
Author: Coull, Brent Andrew; Zanobetti, Antonella; Koutrakis, Petros; Schwartz, Joel David

Note: Order does not necessarily reflect citation order of authors.

Citation: Kloog, Itai, Brent A. Coull, Antonella Zanobetti, Petros Koutrakis, and Joel D. Schwartz. 2012. Acute and chronic effects of particles on hospital admissions in New England. PLoS ONE 7(4): e34664.
Full Text & Related Files:
Abstract: Background: 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. Methods 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. Results: 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 every10-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 every10-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). Conclusions: 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.
Published Version: doi:10.1371/journal.pone.0034664
Other Sources:
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at
Citable link to this page:
Downloads of this work:

Show full Dublin Core record

This item appears in the following Collection(s)


Search DASH

Advanced Search