Basic research on the accessibility of Japanese dental services using the geographic information system
2021 年 55 巻 1 号 p. 41-46
詳細
2021 年 55 巻 1 号 p. 41-46
We calculated the geographic accessibility of dental clinics in Japan for each prefecture from 2010 to 2020 and examined the correlation between accessibility and dental consultation rate to evaluate the balance of supply and demand for dental services. As an index of accessibility to dental care, we calculated the accessibility index (AI) and the accessibility index rate (AIR) for the population outside a 1,000 meter radius using the geographic information system (GIS). We found that although there were no significant changes in the AI and AIR values during the 10 years from 2010, considerable differences existed among the prefectures. Moreover, multiple regression analysis revealed significant negative correlation between AIR and dental consultations among those over 75 years of age. Based on the above results, we concluded that in order to analyze the supply and demand for dental services, it is necessary to reduce the service area. In addition, there is need to analyze the supply and demand for dental care considering the geographic accessibility of those over 75 years of age. (J Osaka Dent Univ 2021; 55: 41-46)
