Medical Analysis on Rural Welfare of Naguri-mura, Iruma-gun, Saitama-Prefecture:Part II On the Compositicn of the Population and the Statistics of the Movement of Population
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概要
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The authors have been engaging in a survey of the composition of the population at Naguri-mura, Iruma-gun, Saitama Prefecture, and in compiling statisics of the movement of the population at that village. The major industory is forestry. The following report is submitted as the- result of the study:<BR>1. The increase or decrease of the population in the last 10 years (1947-1956) was barely noticeable. The least population was 3421 as of 1 April 56, while the most was 3491. The ratio between female and male was 100: 98.9 in 1956. The rest of the years in the last 10 years, the records indicate that the male population was always a litte more than the female.<BR>2. As to the composition of the adult population aged between 25 and 50 years, as of 1 April 1956, the male population remarkably larger than that of the female, however, female population increased as the ages went up. This is considered to be caused by the attraction of the major industory, forestry, to the male populus.<BR>3. The age group 0-4 years is considereably decreased to 10.7%. This means some form of birth control gradully has been adopted by village people. The age group 12-16 years was not too small a group, and it was believed that effect of WW II indirectly resulted in the increase of the population in this group.<BR>4. The statistics of the movement of the population of last 10 years (1947. 1956) are as follows:<BR>a. The variation of population and number of household was hardly seen.<BR>b. The birth rate was similar to that of Japan wide average and indicated as-24% and decreased since 1952. The birth rate of 1956 was 14.9%.<BR>c. The death rate showed at its peak 14.4% at 1951 and decreased since then, showing 9.2-4.3%. These figures resemble that of the average in Japan. The deaths. occurre d mostly in January and February of the year, and most of the victims were in ages over 60 years, or were new born babies. The itemized summary of the causes. are as follows:<BR>For male: 1. Dercepitude<BR>2. Disease of infant<BR>3. Apoplexy<BR>4. External injury by accident. For Female:<BR>1. Dercepitude<BR>2. Apoplexy<BR>3. Malignant tumor<BR>4. Heart disease.<BR>d. The average death of the infant was 4.5% which was close to the average rate of Japan, yet it was lower than Saitama Prefecture as a whole. The rate varied greatly according to the year, however, most of the cases were the deaths of new born babies. This fact introduced the idea that lack of hygienic knowledge rather than the evironment of this village is a major factor.<BR>e. The still birth rate was between 10.0-84.5 as observed in infant death rate and this rate varied so much according to the year. f. The fractuation of marriage rate and divorce rate were not too noticeable.
- 日本民族衛生学会の論文