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Influence of Sex on Age at Onset of Schizophrenia |
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| Authors: | Akinori Shimizu M.D. Masayoshi Kurachi M.D. Makiko Noda M.D. Nariyoshi Yamaguchi M.D. Hosaku Torii M.D. Kiminori Isaki M.D. |
| Affiliation: | Department of Neuropsychiatry, Faculty of Medicine, Toyama Medical and Pharmaceutical University, Toyama;*Department of Neuropsychicatry, Kanazawa University School of Medicine, Kanazawa;**Department of Neuropsychiatry, Kanazawa Medical University, Uchinada, Ishikawa;***Department of Neuropsychiatry, Fukul Medical School, Matsuoka, Fukui |
| Abstract: | 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. |
| Keywords: | schizophrenia age at onset sex difference |