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  1. Seasonal variation in coronary heart disease in Scotland.

    Article - En anglais

    Study objective

    Seasonality of coronary heart disease (CHD) was examined to determine whether fatal and non-fatal disease have the same annual rhythm.

    Design

    Time series analysis was carried out on retrospective data over a 10 year period and analysed by age groups (<45 to>75 years) and gender.

    Setting

    Data by month were obtained for the years 1962-71.

    The Registrar General provided information on deaths and the Research and Intelligence Unit of the Scottish Home and Health Department on hospital admissions.

    Subjects

    In Scotland, between 1962 and 1971,123 000 patients were admitted to hospital for CHD, of whom 29 000 died.

    There were a further 97 000 CHD deaths outside hospital.

    These two groups were also examined as one (coronary incidence) - that is, all coronary deaths and coronary admissions discharged alive.

    Statistical analysis and main results-Where there was a single annual peak, the sine curve was analysed by cosinor analysis.

    When there were two peaks the analysis was by normal approximation to Poisson distribution.

    In younger men (under 45 years) admitted to hospital there was a dominant spring peak and an autumn trough.

    A bimodal pattern of spring and winter peaks was evident for hospital admissions in older male age groups : with increasing age the spring peak diminished and the winter peak increased.

    In contrast, female hospital admissions showed a dominant winter/summer pattern of seasonal variation.

    In male and female CHD deaths sea...

    Mots-clés Pascal : Cardiopathie coronaire, Variation saisonnière, Homme, Ecosse, Grande Bretagne, Royaume Uni, Europe, Epidémiologie, Age, Sexe, Hospitalisation, Appareil circulatoire pathologie

    Mots-clés Pascal anglais : Coronary heart disease, Seasonal variation, Human, Scotland, Great Britain, United Kingdom, Europe, Epidemiology, Age, Sex, Hospitalization, Cardiovascular disease

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

    Cote : 96-0064826

    Code Inist : 002B12A03. Création : 199608.