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  1. Seasonal affective disorder : some epidemiological findings from a tropical climate.

    Article - En anglais

    Objective 

    To determine whether a predominantly summer-focussed pattern of seasonal affective disorder (SAD) exists in tropical northern Australia.

    Method 

    A mail survey containing a modified form of the Seasonal Pattern Assessment Questionnaire (SPAQ) was administered to 176 households in the city of Townsville (latitude : 19° south).

    Results 

    Using previously reported screening criteria, 9% of respondents reported a degree of summer impairment indicative of SAD, while the incidence rate for winter SAD was 1.7%. This summer-winter ratio is typically reversed in more temperate latitudes.

    Conclusions 

    Excessive heat and humidity were reported to be the two most influential environmental factors affecting mood and behaviour.

    It is likely that respondents meeting criteria for summer SAD represent the extreme end of a spectrum of summer-related mood and behaviour change that affects many individuals in northern Australia.

    Strategies for further clinical and epidemiological research on SAD in tropical climates are proposed.

    Mots-clés Pascal : Etat dépressif, Variation saisonnière, Trouble humeur, Epidémiologie, Australie, Océanie, Climat tropical, Humidité ambiante, Homme

    Mots-clés Pascal anglais : Depression, Seasonal variation, Mood disorder, Epidemiology, Australia, Oceania, Tropical climate, Ambient humidity, Human

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

    Cote : 96-0502918

    Code Inist : 002B18C07A. Création : 10/04/1997.