title: Factors affecting estimates of the prevalence of asthma and wheezing in childhood.
abstract: Nine recent studies of the prevalence of asthma and wheezing in childhood are reviewed. Sample prevalences are found to range from 5 to 31% and possible reasons for this are considered; it is shown that the prevalence of asthma found is highly dependent on the criteria used for diagnosis. Some clinical and research implications are discussed.
authors.affiliation: Department of General Practice, University of Glasgow, Scotland.
authors.forename: T P
authors.initials: TP
authors.lastname: Usherwood
mesh_terms: D001249:Asthma / Q000453:epidemiology*; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D011336:Probability; D012135:Respiratory Sounds / Q000453:epidemiology*; D012494:Sampling Studies; D006113:United Kingdom