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  1. Fluctuations in schizophrenic births by year.

    Article - En anglais

    Background

    It has previously been reported that births of individuals who later develop schizophrenia vary by birth year.

    Method

    Birth data were analysed on 34 024 individuals diagnosed with DSM-III-R disorganised, catatonic, and undifferentiated schizophrenia using time series analysis.

    Results

    Minor yearly fluctuations were observed but did not achieve statistical significance.

    Thus earlier findings reported in the literature could not be replicated using a different statistical approach.

    Conclusion

    The findings do not support theories which assume major yearly fluctuations in the births of individuals with schizophrenia.

    Such theories include the perinatal effects of influenza, temperature variation, and the effects of severe weather.

    Mots-clés Pascal : Schizophrénie, Psychose, Date naissance, Enquête, Epidémiologie, Ohio, Etats Unis, Amérique du Nord, Amérique, Pennsylvanie, Virginie, Caroline du Nord, Homme

    Mots-clés Pascal anglais : Schizophrenia, Psychosis, Birth date, Survey, Epidemiology, Ohio, United States, North America, America, Pennsylvania, Virginia, North Carolina, Human

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

    Cote : 97-0026622

    Code Inist : 002B18C06A. Création : 21/05/1997.