IJE Advance Access originally published online on June 3, 2005
International Journal of Epidemiology 2005 34(5):1018-1019; doi:10.1093/ije/dyi115
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Published by Oxford University Press on behalf of the International Epidemiological Association © The Author 2005; all rights reserved.
Commentary |
Commentary: Asthma time trendsmission accomplished?
1 Centre for Public Health Research, Massey University Wellington Campus, Private Box 756, Wellington, New Zealand
2 Department of Biomedical Sciences and Human Oncology, University of Turin, 10126 Torino, Italy
* Corresponding author. E-mail: n.e.pearce@massey.ac.nz
| The first 10% of the full text of this article appears below. |
Until recently most studies had reported that asthma prevalence has increased in recent decades and that the magnitude of the increase had, in some cases, been substantial.1 The best indication of what is now happening globally will be provided by the forthcoming findings of Phase III of the ISAAC study. However, some individual ISAAC centres in Western countries, as well as several studies in adults, have already reported either no increase, or even a decrease in asthma prevalence over the last ten years.2 Furthermore, Phase II of the European Respiratory Health Survey (ECRHS) found no increase in current or severe asthma symptoms, but a significant increase
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