title: Seasonal variation in the incidence of mania.
abstract: The seasonal variation of admissions to hospital with a diagnosis of mania (296.1) in England and Wales was examined. The results indicated that for females there was a significant seasonal trend, the peak being in August-September, while for males there was no significant seasonal pattern. The possible reasons for these findings are discussed.
mesh_terms: D001714:Bipolar Disorder / Q000453:epidemiology*; D004739:England; D005260:Female; D006760:Hospitalization; D006801:Humans; D008297:Male; D012621:Seasons; D012737:Sex Factors; D013223:Statistics as Topic; D014852:Wales