[Circannual rhythm of schizophrenic births (author's transl)].
Seven studies (in Switzerland, USA, United Kingdom, Canada, Japan, Sweden, Denmark) have shown the probable existence of a circannual rhythm of schizophrenic birth with a peak in winter. Three hypothesis try to explain this fact: - a constitutional injure; - a different circannual rhythm in sexual activity of schizophrenic parents; - a chronobiological perturbation.
D001723:Birth Rate; D006801:Humans; D010507:Periodicity; D012559:Schizophrenia / Q000453:epidemiology*; D012621:Seasons
Rythme circannuel des naissances de schizophrènes. Discussion à partir d'études menées dans sept pays.