The relationships between the eruption order of the first permanent teeth on children in a kindergarten, way of feeding at infancy, and taste at the present time were examined. The aim of this study was to investigate the effects of their daily consuming foods including at their infancy on the changes in the eruption order of the first permanent teeth from the first permanent molar (M1) to the central permanent incisor (I1). One hundred and fourty-nine children (82 boys and 67 girls) whose first permanent tooth was mandibular I1 (I-type children) were compared with 111 children (48 boys and 63 girls) whose first permanent tooth was mandibular M1(M-type children) on their ways of feeding at infancy and their taste at the present time. Results were as follows: 1) In both sexes, the evident relationship was observed between the eruption order of the first permanent teeth and the ways of feeding in infancy. M-type children were breast fed for longer time than I-type children. In the discriminant analysis, breast feeding was related to the M-type eruption, and bottle feeding was related to the I-type eruption. 2) Weaning was started earlier in M-type children than in I-type children. The rate of the children who began weaning earlier than 4-months old was significantly higher in M-type children than in I-type children. 3) The M-type children liked fruits and fish more than I-type children. 4) These results suggest that elevated sucking and chewing frequency by breast feeding and early start of weaning at infancy influenced the eruption order of the first permanent teeth as well as the growth of the mandible.
Nutrition survey was held on 88 Korean women living at Adachi-ku, Tokyo, May 11-12, 1981, in order to make clear their food consumption pattern in comparison with Japanese women who were surveyed in terms of the same method by the authors. In addition, generation gap were also estimated among the Korean women. 1) Results in amounts of food consumed The amount of food cosumed a day per capita was weighed and scaled so carefully that well-trained interviewers of nutritionists visited with them every days and supported them to weight and write on the recording paper. When amount of food consumed in each food-articles were compared between Korean and Japanese women, there were as reasonable differences as nation-wide differences between them in several food-articles, i.e., milk, noodle and vegetables which are consumed larger amount in Japanese than in Korean, and kimchies, rice, meat and processed food which were consumed larger amount in Korean than in Japanese. There were very interesting results that the generation gaps between the first and the second generation of Koreans in Tokyo simulated the gaps between Korean food in their home country and Japanese food in National Nutrition Survey. In other say, Koreans in Tokyo are adapting to Japanese food in generation scale but not in simple chronological scale. 2) Results in Food Consumption Structure The correlation coefficients between all of food groups were shown in matrix were named “Food Consumption Structure ”hby Toyokawa, H., a member of the authors. The food consumption structure was so characteristic in both of Korean two generations and the suburban Japanese female that there were much clear differences among These differences showed also an aspect of sociocultural association between Korea Japan.
Life tables and SMRs have been calculated for main diseases (malignant neoplasm of stomach, malignant neoplasm of lung, other malignant neoplasms, diabetes mellitus, ischemic heart disease, cerebrovascular disease, motor vehicle accidents, suicide, other accidents) in various occupational groups of male in Japan and Great Britain. The factor analysis has been carried out by using occupational SMRs. The results are as follows: 1) For all causes, comparing to that of Great Britain, the difference in survival rate of the life table by the occupational group is bigger in Japan. 2) For malignant neoplasm of stomach, malignant neoplasm of lung, ischemic heart disease and cerebrovascular disease, there are big differences in survival rate of life tables between Japan and Great Britain. There are no overlap among each occupation between these two countries. 3) In both countries, first factors weighed higher values for all causes and second factors weighed especially higher values for all accidents. 4) In spite of big differences of mortality from specific causes between these two countries. However, the factor structure of SMRs of Japan is very much similar to that of Great Britain.