Influence of sex on age at onset of schizophrenia.
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.
Shimizu
A
A
Department of Neuropsychiatry, Faculty of Medicine, Toyama Medical and Pharmaceutical University.
Kurachi
M
M
Noda
M
M
Yamaguchi
N
N
Torii
H
H
Isaki
K
K
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