한국부인의 임신과 출산의 주기성에 관한 연구

Abstract

The purpose of the present sutdy is to analyse seasonal variations of pregnancies and births in Korea. The data on pregnancies and births from January 1966 through December 1975 were collected from the national sampling survey. There was a sharp peak in pregnancies during the period of February to June. The month of March is shown to be the most high in pregnancies representing the Standard Index Number 113.2. Seasonal trends in pregnancies between urban and rural areas were similar to each other. The months of high marriage must be related to the months of high pregnancies, though no exact information on this could be obtained On the other hand , there was a peak in births in the month of May representing the Standard Index Number 113.7. The data also show that there was n。 significant difference in fluctuation of births by month between urban and rural areas. The high pregnancy months were not corresponding to the month of high births, since the data on pregnancies and births was not exactly collected from cohort group