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  1. Incidence of asthma in adults : report from the Obstructive Lung Disease in Northern Sweden Study.

    Article - En anglais

    Incidence studies offer a better opportunity to study risk factors for asthma than do prevalence studies.

    However, regular prospective follow-ups of large cohorts are difficult to perform, and that is why direct measurement of the incidence rate of asthma is almost impossible.

    Thus, cross-sectional follow-up studies of defined cohorts can be used to provide data on incidence.

    In 1986, a postal questionnaire survey on respiratory symptoms and diseases was performed in the northernmost province of Sweden.

    The population sample comprised all subjects born in 1919-20,1934-5, and 1949-50 in eight representative areas of the province, which comprises 25% of the total area of Sweden.

    Completed answers were given by 5698 subjects (86%) of the 6610 subjects invited to the study.

    In 1992, the cohort was invited to a follow-up survey during the same season as in 1986, and 6215 subjects were traced.

    Of the 5393 subjects who answered the questionnaire, 4932 had participated in the 1986 survey, or 87% of those who participated in 1986.

    For the period 1986-92, the cumulative incidences of asthma were 4.9 and 5.0%, respectively, as assessed by the questions, « Have you ever had asthma ? » and « Have you been diagnosed as having asthma by a physician ? » Thus, the results indicate a mean annual cumulative incidence of asthma of 0.8%. (...)

    Mots-clés Pascal : Asthme, Incidence, Epidémiologie, Questionnaire, Facteur risque, Suède, Europe, Adulte, Homme, Appareil respiratoire pathologie, Bronchopneumopathie obstructive

    Mots-clés Pascal anglais : Asthma, Incidence, Epidemiology, Questionnaire, Risk factor, Sweden, Europe, Adult, Human, Respiratory disease, Obstructive pulmonary disease

    Logo du centre Notice produite par :
    Inist-CNRS - Institut de l'Information Scientifique et Technique

    Cote : 98-0012975

    Code Inist : 002B11B. Création : 17/04/1998.