A study on the location of dental practices in Japan.
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概要
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At present, it is important for the dental health service to understand the relation of demand and supply for services in each district, considering the movement of population, the social security, and patients' behavior visiting dentists. A new method for investigation and analysis was employed to study the geographical distribution of dentists, and the following results were obtained.<BR>1. Immediately after being licensed, over half of all dentists engaged in business in the prefecture where they attended dental school. After that, the number gradually decreased. About eighty percent had their practices in their native prefectures.<BR>2. The ratio of practitioners in their native prefectures (the settlement ratio) varied from 43% in Nara Prefecture to 90% in Aichi Prefecture. The average was 78%. The settlement ratio by city size varied from 42% in rural areas to 80% in cities of over 300, 000 population. The average was 64%.<BR>3. The ratio of dentists who moved from their native prefecture to another prefecture (the movein ratio) varied from 0% in Toyama Prefecture and three other prefectures to 55% in Chiba Prefecture. The ratio in prefectures including metropolitan areas was found to be high. The movein ratio by city size varied from 21% in rural areas to 44% in cities of 200, 000-300, 000 population.<BR>4. The ratio by number of practitioners in the prefecture to the number of dentists coming from the same prefecture (the practice ratio) varied from 0.52 in Yamagata Prefecture to 1.56 in Chiba Prefecture. The ratios in ten prefectures including metropolitan areas was found to be over 1.00. The practice ratio by city size varied from 0.53 in rural areas to 1.44 in cities of over 300, 000 population. Also, practitioners tend to concentrate in urban areas of their native prefecture (J-turn phenomenon).<BR>5. As to reasons for selection of practice location, "Financial reasons at the time of starting practice", "Business conditions after opening" and "Enviromental conditions for daily life" were each slightly less than 20%. Significant correlations were found between the practice ratio <I>vs</I> social life indicators and the move-in ratio <I>vs</I> social life indicators which include the rate of population increase, the average income per person in a prefecture and the Japan potentials indicator in each prefecture.<BR>6. The geographical distribution of dentists in the future was forecast from the ratios mentioned above and analysis of reasons for selection of practice location. In prefectures including metropolitan areas such as Tokyo or Osaka, the rate of increase will be lower. In the prefectures close to metropolitan areas such as Saitama, Ibaragi or Nara, the number of dentists will increase markedly. Accordingly, the difference in number of dentists per 100, 000 population is expected to decrease. However, no increase is expected in Aomori, Fukui, Tottori, and other rural areas.
- 有限責任中間法人 日本口腔衛生学会の論文
有限責任中間法人 日本口腔衛生学会 | 論文
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