title: [Late-onset schizophrenia].
abstract: We conducted clinical research at Jichi Medical University Hospital psychiatric ward on 38 patients over the age of 40 with late-onset schizophrenia and on 278 patients under the age of 40 with early-onset schizophrenia. Cases with onset after age 40 reported in 12% of the total population. Female cases were 20.4%, and the result was significantly higher than the male cases of 4.3%. Paranoid type was 55.3% of the total population of the late-onset cases, and it was significantly higher than the early-onset cases of younger than 40 years old. 55.3% of late-onset cases were combined with depressive symptoms, and they rated significantly higher than early-onset cases.
authors.affiliation: Department of Psychiatry, Jichi Medical University.
authors.forename: Manabu
authors.initials: M
authors.lastname: Yasuda
authors.forename: Satoshi
authors.initials: S
authors.lastname: Kato
mesh_terms: D000328:Adult; D017668:Age of Onset; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011567:Psychiatric Department, Hospital; D012559:Schizophrenia / Q000175:diagnosis / Q000453:epidemiology* / Q000628:therapy; D012565:Schizophrenic Psychology; D012737:Sex Factors