Recently increase of aged patients has been discussed in several fields. We have few information, however, about aged patients in psychiatric field. In this paper, the present condition of aged patients (older than age of 60) in national mental sanatorium was studied as the joint study of national mental sanatorium in 1972 and 1973.
Method
As primary survey, the age, sex and diagnosis of all patients in national mental sanatoria were surveyed in April 1, 1973.
On the basis of this data, lists for investigation about aged patients was made.
According to these lists, aged patients of each mental sanatorium were surveyed by attendant psychiatrists. We took statistics about aged patients by using these lists.
Results
1) Aged patients were 13.6% (575 cases) of all patients (4, 291 cases) in national mental sanatorium.
2) Although, lists of 575 cases were collected, number of effective objects were 540 cases.
percentage of each diagnosis of 540 cases is as follows,
Schizophrenia 36.7%
Senile dementia 14.4%
Arteriosclerotic mental disorder 12.6%
Other functional senile mental disorder 11.5%
This data suggests that increase of aged patients in national mental sanatorium depends on increase of chronic schizophrenic patients.
3) Concerning with distribution of aged cases, peak of schizophrenic patients was found between age of 60 to 64, and other senile mental disorder older than age of 75.
4) Aged psychiatric patients with chronic psychical illness were 71.196.
5) Defect cases were 49.4%.
Moreover, the data suggests that these patients might have dementia
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