EDITORIAL
Wheeze and asthma in developing countries
Wheeze, asthma diagnosis and medication use in developing countries
Correspondence to:
Correspondence to:
Professor M R Becklake
Respiratory Epidemiology and Clinical Research Unit, Montréal Chest Institute, 3650 St Urbain Street, Montréal, Québec, Canada H2X 2P4; margaret.becklake@mcgill.ca
Sociodemographic, environmental, and medical predictors in a national adult survey conducted in South Africa
Keywords: wheeze; asthma; developing countries
| The first 150 words of the full text of this article appear below. |
Standardised population based health surveys have produced much useful information on the prevalence and determinants of asthma in children (International Study of Asthma and Allergy in Children (ISAAC) study)1 and adults (European Community Respiratory Health Study (ECRHS) study).2 Most sites participating in these studies have been in high income countries and, because some centres took part at their own expense, the populations studied were probably not representative of their countries as a whole. In addition, a number of national health surveys such the US National Health and Nutrition Survey (NHANES),3 the Canadian National Health Survey,4 and National Birth Cohort Studies (UK, New Zealand)5,6 have been conducted, all in high income countries.
In this issue of Thorax Ehrlich et al,7 in what is one of the first such studies in a developing (in this case middle income) country, describe the results of a national
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