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  1. Genetic epidemiological study of schizophrenia in Palau, Micronesia : Prevalence and familiality.

    Article - En anglais

    We are studying the genetic etiology of schizophrenia in the Republic of Palau, a remote island nation in Micronesia that has been geographically and ethnically isolated for approximately 2,000 years.

    The first epidemiological phase sought to estimate the lifetime prevalence of schizophrenia and evaluate the familiality of the illness based on complete ascertainment of cases and families segregating schizophrenia.

    A total of 160 strictly defined cases of schizophrenia were ascertained in a population of 13,750 adults who were 15 years of age and older.

    The lifetime prevalence of strictly defined schizophrenia in Palau was 1.99% overall and 2.77% in males vs. 1.24% in females.

    This greater than 2 : 1 male-to-female risk ratio for schizophrenia was accompanied by an earlier mean age of onset for males (23.3 years) than for females (27.5 years).

    These 160 cases of strict schizophrenia represent 59 separate families each identified by a single common founder.

    Eleven of these families have 5 to 14 cases and represent nearly half of the strict schizophrenia cases in Palau.

    Although schizophrenia is clearly aggregating in these 11 families, cases are distributed sparsely throughout the large sibships.

    In the entire sample of 160 cases of strict schizophrenia, there were only 11 sib-pairs and 2 sib-trios.

    When a family was defined to include third-degree relatives, only 11 cases (6.9%) were nonfamilial. (...)

    Mots-clés Pascal : Schizophrénie, Micronésie, Océanie, Prévalence, Déterminisme génétique, Homme, Epidémiologie, Etude familiale, Hérédité, Age apparition, Sexe, Femelle, Mâle, Psychopathologie

    Mots-clés Pascal anglais : Schizophrenia, Micronesia, Oceania, Prevalence, Genetic determinism, Human, Epidemiology, Family study, Inheritance(genetics), Age of onset, Sex, Female, Male, Psychopathology

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

    Cote : 99-0130098

    Code Inist : 002B18C06A. Création : 16/11/1999.