Abstract
With the primary purpose of analyzing the biological and socio-environmental factors related to the premature and immature-birth, the author carried out the investigations from June 1958 to May 1962 on the pregnant women who visited the Kyoto National Hospital.
Investigations were made on a sample of 1052 subjects by means of interviewing three times during their pregnant period.
Statistical studies were pursued on various kind of factors which would influence the premature and immature-birth such as physical and mental fatigue, nutrition, school career, prenatal medical care, family income, etc.
The author noticed that economical state of home life responsible for the overwork and insufficient nutrition of the pregnant women will be the most effective factor.
The detailed results obtained from these surveys and analyses are reported and are shown in Tables 1∼34.
