출생순위와 정신장애 = BIRTH ORDER AND MENTAL DISORDER

다국어 초록 (Multilingual Abstract)

There have been many reports which dealt with the matter of incidence of schizophrenia, controlled by family size and sibling order. They got no uniform result but many of them suggested a possible relation between the schizophrenic incidence and the sibling order.
Meanwhile the family size is getting smaller. Anticipation of this leads us to deal with the problem of mental hygiene in the small sized family. So the authors have chosen the mental patients who have two siblings, in the O.P.D. and the ward of Department of Neuropsychiatry of Han-Gang Sacred Heart Hospital from September 1976 to November 1977 to see the incidence of psychoses and neuroses among three siblings. The authors could sample 124 cases of psychotic and neurotic patients excluding patients with brain syndromes and 60 cases of organic brain syndromes, the control group.
The results were as follows:
1. Among 29 psychotics, 12 were the first born, 7 the second born and 10 the third born. Among 95 neurotics, 30 cases were the first born, 37 the second born and 28 the third born. No significant difference was noted among these features.
2. In the subgroups of one son and two daughters, 3 brothers, and 3 sisters, no siginificant relationship in incidnece of mental disorder could be found.
3. In the subgroups of two sons and one daughter, the incidence of neurosis was significantly high in females.
4. In the group of organic brain syndromes, there was no significant difference in the incidence of psychosis and neurosis among different sibling orders.