精神分裂症 患者의 季節別 出生과 性別에 關한 研究 = The Seasonality and Sex Differences of Schizophrenic Births

다국어 초록 (Multilingual Abstract)

To find out the association between the season of birth and the risk for schizophrenia and
to test a hypothesis that season of birth was related to the sex difference of the schizophrenic
population, we analyzed the data of 1384 male and female schizophreic inpatients who were
admitted to the neuropsychiatric department of Chonnam National University Hospital and
Naju National Mental Hospital from March 1985 to June 1989. All of them were born in Kwangju-
Chonnam province and the season of births were compared to those of general population
in Kwangju-Chonnam Province.
The results of this study were as follows ;
1) Comparing with general populations, winter excess of births in schizohrenics were statistically
significant. Sex difference in the season of schizophrenic births was also found. Women
schizophrenics had more prominent seasonal effects than men.
2) Winter-born schizophrenics had several characteristics, such as earlier onsets, shorter
durations of hospitalization, more frequent recurrences and longer durations of illness than
those of non winter-born schizophrenics. Seasonal effects on clinical subtypes, marrital status,
occupational status, total educational years and places of birth were not found. Sex differences
on these variables were also not significant.
3) When the year of birth was divided by each decade, winter-excess of birth was significant
in patients who were born between late fifties and early sixties. Though statistically not significant,
shifting of seasonality of birth between decades had occurred. Before early fifties, springand
autumn-excess of schizophrenic births were prominent. After late fifties, however, winterexcess
of births had happened. Generally, there was more marked seasonal effect in womenschizophrenics
than those of men.
Although we concluded that the season birth was associated with the sex difference of
schizophrenic patients, we did not have any other evidence to support the hypothesis that
interaction of seasonality of birth and sex was related to the risk for subgroups of schizophrenia.

목차 (Table of Contents)

• 서 론
• 연구대상 및 방법
• 결 과
• 고 안
• 결 론
• References