福井県下の中・高校生における神経性食欲不振症の疫学調査

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The aim of present study is to elucidate the incidence of anorexia nervosa and to discover how common it is that young malnourished students have problems in their body image and eating styles. An epidemiologic study was performed using a total of 24,837 boys and 24,853 girls in junior and senior high schools. Initially, malnourished students below 20% of Broca's standard body weight and students with fluctuating body weight were chosen with the cooperation of teacherts, in a student health survey. Secondly, each student chosen was surveyed using a questionnaire, and those who corresponded to each of following three criteria were selected; 1) Below 20% of standard body weight and weight loss of not less than 2kg, nor more than 5kg from original body weight, with either a desire to be slim or weight phodia. 2) Weight loss of more than 5kg from original body weight. 3) Amenorrhea. Then, each student secondly selected was interviewed, and finally one junior high school boy and 6 senior high school girls were diagnosed as anorexia nervosa according to Suematsu's criteria. Thus the average incidence of anorexia nervosa was ascertained as 0.011% and 0.064% in junior high school boys and senior high school girls respectively. There was significant difference in incidence between the northern part of this prefectuce (0.024%) and the southern part (0.284%). Fukui City, which is the biggest city in this prefecture with a population of 247,254,has the incidence of only 0.028%, but Obama City, which is the rather smaller city with a population of 33,753,has a higher incidence of 0.427%. Fukui City is located in the northern part, and Obama City is in the southern part.Fukui prefecture is politically and linguistically divided into two parts, the northern part and the southern part. In the southern part, Keihan-accented language is used popularly, but not in the northern part. This fact means that the southern part may culturally belong to the Keihan areas as well as the big cities such as Osaka City or Kyoto City at least linguistically.Although 23.7% of malnourished girls have some problems both in body image and eating styles, there was no significant difference between the northern part and the southern part.These data suggest that some cultural factors of city life may take an important role in increasing the incidence of anorexia nervosa, but may not influence body image and eating style in different parts.
日本心身医学会の論文
1986-08-01

福井県下の中・高校生における神経性食欲不振症の疫学調査

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