reference : Short-term associations between ambient air pollutants and pediatric asthma emergency department visits

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/reference/3dca835b-beb7-49f5-b9c1-54753dc54ddc
Bibliographic fields
reftype Journal Article
Abstract Rationale: Certain outdoor air pollutants cause asthma exacerbations in children. To advance understanding of these relationships, further characterization of the dose–response and pollutant lag effects are needed, as are investigations of pollutant species beyond the commonly measured criteria pollutants. Objectives: Investigate short-term associations between ambient air pollutant concentrations and emergency department visits for pediatric asthma. Methods: Daily counts of emergency department visits for asthma or wheeze among children aged 5 to 17 years were collected from 41 Metropolitan Atlanta hospitals during 1993–2004 (n = 91,386 visits). Ambient concentrations of gaseous pollutants and speciated particulate matter were available from stationary monitors during this time period. Rate ratios for the warm season (May to October) and cold season (November to April) were estimated using Poisson generalized linear models in the framework of a case-crossover analysis. Measurements and Main Results: Both ozone and primary pollutants from traffic sources were associated with emergency department visits for asthma or wheeze; evidence for independent effects of ozone and primary pollutants from traffic sources were observed in multipollutant models. These associations tended to be of the highest magnitude for concentrations on the day of the emergency department visit and were present at relatively low ambient concentrations. Conclusions: Even at relatively low ambient concentrations, ozone and primary pollutants from traffic sources independently contributed to the burden of emergency department visits for pediatric asthma.
Author Strickland, Matthew J.; Darrow, Lyndsey A.; Klein, Mitchel; Flanders, W. Dana; Sarnat, Jeremy A.; Waller, Lance A.; Sarnat, Stefanie E.; Mulholland, James A.; Tolbert, Paige E.
DOI 10.1164/rccm.200908-1201OC
Date 04/08 08/06/received 03/31/accepted
ISSN 1535-4970
Issue 3
Journal American Journal of Respiratory and Critical Care Medicine
Notes ajrccm1823307[PII] 20378732[pmid] Am J Respir Crit Care Med
Pages 307-316
Title Short-term associations between ambient air pollutants and pediatric asthma emergency department visits
Volume 182
Year 2010
Bibliographic identifiers
.publisher American Thoracic Society
.reference_type 0
_record_number 19097
_uuid 3dca835b-beb7-49f5-b9c1-54753dc54ddc