title: Influence of sex on age at onset of schizophrenia.
abstract: The age at onset of schizophrenia was investigated in 2,417 inpatients (1,433 males and 984 females) meeting the DSM-III criteria for schizophrenia. About 80% of the patients became schizophrenic before the age of 30. The mean age at onset of the male patients was slightly earlier than that of the female patients. There was a higher cumulative percentage of the male patients who became affected at each age quinquennium. More men than women became schizophrenic before the age of 30.
authors.affiliation: Department of Neuropsychiatry, Faculty of Medicine, Toyama Medical and Pharmaceutical University.
authors.forename: A
authors.initials: A
authors.lastname: Shimizu
authors.forename: M
authors.initials: M
authors.lastname: Kurachi
authors.forename: M
authors.initials: M
authors.lastname: Noda
authors.forename: N
authors.initials: N
authors.lastname: Yamaguchi
authors.forename: H
authors.initials: H
authors.lastname: Torii
authors.forename: K
authors.initials: K
authors.lastname: Isaki
mesh_terms: D000328:Adult; D000367:Age Factors; D005260:Female; D006801:Humans; D008297:Male; D008370:Manuals as Topic; D008875:Middle Aged; D012559:Schizophrenia / Q000175:diagnosis; D012565:Schizophrenic Psychology; D012737:Sex Factors