The Journal of Allergy and Clinical Immunology
Volume 122, Issue 4 , Pages 662-668 , October 2008

Epidemiology of asthma exacerbations

  • Malcolm R. Sears, MB, FRACP, FRCPC, FAAAAI

      Affiliations

    • Corresponding Author InformationReprint requests: Malcolm R. Sears, MB, FRACP, FRCPC, FAAAAI, Professor of Medicine, McMaster University, Research Director, Firestone Institute for Respiratory Health, St Joseph's Healthcare Hamilton, 50 Charlton Avenue East, Hamilton, Ontario L8N 4A6, Canada.

Received 10 July 2008 ,Revised 31 July 2008 ,Accepted 1 August 2008.

  • Image Result

    The annual cycle of asthma exacerbations in children 2 to 15 years, adults 16 to 49 years, and adults 50 years and older. Data represent all ED visits for asthma in Ontario, Canada, from April 2001 to

    The annual cycle of asthma exacerbations in children 2 to 15 years, adults 16 to 49 years, and adults 50 years and older. Data represent all ED visits for asthma in Ontario, Canada, from April 2001 to March 2005 condensed to a single year, by week of the year and expressed as multiples of the weekly mean number. Reprinted with permission from Johnston N. The similarities and differences of epidemic cycles of chronic obstructive pulmonary disease and asthma exacerbations. Proc Am Thorac Soc 2007;4:591-6.13

 Series editors: Donald Y. M. Leung, MD, PhD, and Dennis K. Ledford, MD

PII: S0091-6749(08)01484-X

doi: 10.1016/j.jaci.2008.08.003

The Journal of Allergy and Clinical Immunology
Volume 122, Issue 4 , Pages 662-668 , October 2008

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