[European Community Respiratory Health Survey: The main results so far with special reference to Iceland.].

Introduction: The European Community Respiratory Health Survey (ECRHS) was the first project embarked on extensive study of geographical difference between countries with regards to asthma and atopy incidence in a young adult population. The same methodology and definitions were used at all study sites. The purpose of this article is to review the published results of the ECRHS with a special emphasis on the findings from the Icelandic population, and compare these results with those from the participants from the other nations and study sites.