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  1. Seasonality of mania : a Tasmanian study.

    Article - En anglais


    The aim of the study was to examine the seasonal incidence of mania in a new Southern Hemisphere location.


    Using the Tasmanian psychiatric database, monthly admission rates were compared with expected admission rates for mania for the period 1983 to 1989.

    ICD-9 criteria for mania single episode (296.0) and mania recurrent episodes (296.1) were used, excluding individuals with a bipolar disorder (296.4 to 296.89).


    One thousand three hundred and twenty-eight persons were admitted during this period.

    There was a significant monthly variation with admissions occurring most commonly in the summer, but this was not consistent during the seven year period.


    There was a statistically significant but inconstant summer excess.

    The inconstancy of the finding suggests that the phenomenon is not a simple consequence of light duration, and closer examination of these inconsistencies may lead to further elucidation of the phenomenon.

    Mots-clés Pascal : Manie, Trouble humeur, Variation saisonnière, Tasmanie, Australie, Océanie, Epidémiologie, Etude longitudinale, Homme

    Mots-clés Pascal anglais : Mania, Mood disorder, Seasonal variation, Tasmania, Australia, Oceania, Epidemiology, Follow up study, Human

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

    Cote : 96-0065155

    Code Inist : 002B18C07B. Création : 199608.