Environmental Health

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Air pollution and emergency department visits for cardiac and respiratory conditions: a multi-city time-series analysis

David M Stieb1,2*, Mieczyslaw Szyszkowicz1, Brian H Rowe3 and Judith A Leech1,4

Author Affiliations

1 Population Studies Division, Healthy Environments and Consumer Safety Branch, Health Canada, Postal locator 4903C, 269 Laurier Ave West Ottawa, Ontario, K1A 0K9, Canada

2 Department of Epidemiology and Community Medicine, University of Ottawa, Room 3105, 451 Smyth Road, Ottawa, Ontario, K1H 8M5, Canada

3 Department of Emergency Medicine, University of Alberta, Room 1G1.43 WMC, University of Alberta Hospital, 8440-112th Street, Edmonton, Alberta, T6G 2B7, Canada

4 Department of Medicine, University of Ottawa, Ottawa Hospital, Civic Campus, 1053 Carling Avenue, Ottawa, Ontario, K1Y 4E9, Canada

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Environmental Health 2009, 8:25 doi:10.1186/1476-069X-8-25

Published: 10 June 2009

Additional files

Additional file 1:

Number of monitors by city and pollutant and city surface area.

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Additional file 2:

Knots were placed every n weeks in the natural spline function of time. n is shown by diagnosis group and site.

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Additional file 3:

Percent increase in cardiac visits by pollutant, lag and diagnosis, for change in pollutant concentration equal to mean among all centres. Analysis is based on 3 hour average pollutant concentrations and emergency visits. Effect estimates are pooled among centres.

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Additional file 4:

Percent increase in respiratory visits by pollutant, lag and diagnosis, for change in pollutant concentration equal to mean among all centres. Analysis is based on 3 hour average pollutant concentrations and emergency visits. Effect estimates are pooled among centres.

Format: PDF Size: 75KB Download file

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Open Data