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Review
. 2009 Oct 27;181(9):E181-90.
doi: 10.1503/cmaj.080612. Epub 2009 Sep 14.

Asthma: epidemiology, etiology and risk factors

Padmaja Subbarao  1 , Piush J Mandhane, Malcolm R Sears
Affiliations
Review

Asthma: epidemiology, etiology and risk factors

Padmaja Subbarao et al. CMAJ. .
No abstract available

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Figures

Figure 1
Figure 1
Changes in prevalence of diagnosed asthma (A) and asthma symptoms (B) over time among children and young adults. Reproduced, with permission, from Eder W, Ege MJ, von Mutius E. The asthma epidemic. N Engl J Med 2006;355:2226–35. Copyright 2006 Massachusetts Medical Society.
Figure 2
Figure 2
Annual changes in worldwide prevalence of asthma symptoms among children 6–7 years old and 13–14 years old, over a mean of 7 years following phase I of the International Study of Asthma and Allergies in Childhood (which in most participating countries was conducted between 1991 and 1993). Blue triangles identify locations where prevalence was reduced by at least 1 standard error (SE) per year, green squares identify locations where there was little change in prevalence (i.e., change of less than 1 SE per year) and red triangles identify locations where prevalence increased by at least 1 SE per year. Reproduced from The Lancet, Vol. 368, Asher MI, Montefort S, Bjorksten B, et al.; ISAAC Phase Three Study Group. Worldwide time trends in the prevalence of symptoms of asthma, allergic rhinoconjunctivitis, and eczema in childhood: ISAAC Phases One and Three repeat multicountry cross-sectional surveys. Pages 733–43, copyright 2006, with permission from Elsevier.
See this image and copyright information in PMC

Comment in

  • Acetaminophen and asthma.
    Singh A. Singh A. CMAJ. 2009 Oct 27;181(9):616; author reply 616. doi: 10.1503/cmaj.109-2026. CMAJ. 2009. PMID: 19858270 Free PMC article. No abstract available.

References

    1. Subbarao P, Becker A, Brook JR, et al. CHILD Study Investigators. Epidemiology of asthma: risk factors for development. Expert Rev Clin Immunol. 2009;5:77–95. - PubMed
    1. Eder W, Ege MJ, von Mutius E. The asthma epidemic. N Engl J Med. 2006;355:2226–35. - PubMed
    1. International Study of Asthma and Allergies in Childhood (ISAAC) Steering Committee. Worldwide variation in prevalence of symptoms of asthma, allergic rhinoconjunctivitis, and atopic eczema: ISAAC. Lancet. 1998;351:1225–32. - PubMed
    1. Janson C, Anto J, Burney P, et al. The European Community Respiratory Health Survey: What are the main results so far? European Community Respiratory Health Survey II. Eur Respir J. 2001;18:598–611. - PubMed
    1. Asher MI, Montefort S, Bjorksten B, et al. ISAAC Phase Three Study Group. Worldwide time trends in the prevalence of symptoms of asthma, allergic rhinoconjunctivitis, and eczema in childhood: ISAAC Phases One and Three repeat multicountry cross-sectional surveys. Lancet. 2006;368:733–43. - PubMed

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