Trends in prevalence and severity of childhood asthma.
To test the null hypothesis that there has been no change in the prevalence or severity of childhood asthma over recent years.
Design-Repeated population prevalence survey with questionnaires completed by parents followed by home interviews with parents.
Setting-London borough of Croydon, 1978 and 1991
Subjects-All children in one year of state and private primary schools aged 7 1/2, to 8 1/2 years at screening survey.
Main outcome measures-Trends in symptoms, acute severe attacks, and chronic disability.
For 1978 and 1991 respectively, the response rates were 4147/4763 and 3070/3786, and home interviews were obtained from 273/288 and 319/395 parents of currently wheezy children.
Mots-clés Pascal : Appareil respiratoire pathologie, Bronchopneumopathie obstructive, Poumon, Epidémiologie, Enfant, Homme, Poumon pathologie, Asthme, Prévalence
Mots-clés Pascal anglais : Respiratory disease, Obstructive pulmonary disease, Lung, Epidemiology, Child, Human, Lung disease, Asthma, Prevalence
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 94-0522455
Code Inist : 002B11B. Création : 199501.