Studies on the mortality of inpatients at the department of psychiatry, the Konodai National Hospital.

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  • 国立国府台病院精神科在院患者の死亡率および死因の検討

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The mortality of inpatients at the Department of Psychiatry, the Konodai National Hospital in Ichikawa, was studied for the years of 1966-1985. The total number of deaths was 99. The crude death rate was 16.6. The number of death cases and the crude death rate gradually increased from the period of 1966-1970 to the period of 1976-1980. The number of death cases and the death rate in the younger population increased between the period of 1966-1970 and the period of 1976-1980, but decreased between 1981 and 1985. In the elderly population, these increased almost linearly between 1966 and 1985.<br>The major causes of death, listed in order of numbers, were suicide, pneumonia and bronchitis, malignant neoplasm, heart disease, cerebro-vascular disease and psychosis. The younger patients had a extremely higher suicide mortality risk, but in the elderly patients, the major causes of death were pneumonia and bronchitis, cerebro-vascular disease and psychosis.<br>Mean death rates per year by psychiatric diagnosis were revealed as follows; symptomatic psychosis 263.2, senile psychosis 96.4, toxic psychosis 67.8, organic psychosis 61.2, manic-depressive disorder 28.6, schizophrenia 11.6, neurosis 6.6, and so on. The major causes of death of functional psychosis (schizophrenia and MDI) were suicide, malignant neoplasm and cerebro-vascular disease. The major causes of death of psychosis caused by organic factor (organic psychosis, senile psychosis and neurosyphilis) were pneumonia and bronchitis, heart disease and psychosis.

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