Gotouda Hiroya, Kasai Kazutaka, Kaneda Takashi, Fukumoto Masahiko, Sasai Hirofumi, Kobayashi Seigo, Kanazawa Eisaku, Kawara Misao, Makimura Masaharu
Department of Community Oral Health, Nihon University School of Dentistry at Matsudo, Matsudo, Chiba, Japan.
J Oral Sci. 2009 Dec;51(4):635-9. doi: 10.2334/josnusd.51.635.
The purpose of this study was to evaluate the correlation and distribution of dental postgraduate residents, dentists and clinical training facilities in each prefecture to analyze the regional distribution and supply of dentists in Japan. The results were also compared with referential data for medicine. The coefficient of correlation between the dentist index and dental postgraduate resident index was r = 0.76 (P < 0.001) in 2006. The distribution (coefficient of variation) was greatest for the dental postgraduate resident index. The numbers of dentists per 100,000 population in prefectures with dental colleges were significantly higher in 1986, 1996 and 2006 for each comparison (P < 0.001). Coefficients of correlation between dentist index and dental postgraduate resident index were r = 0.65 (P < 0.01) in prefectures with dental colleges and r = 0.11 in those without dental colleges in 2006. The prefectures with high level of numbers of cooperative-type clinical training facilities had dental colleges.
本研究旨在评估日本各都道府县牙科研究生住院医师、牙医及临床培训设施的相关性与分布情况，以分析日本牙医的地区分布及供应情况。研究结果还与医学方面的参考数据进行了比较。2006年，牙医指数与牙科研究生住院医师指数之间的相关系数r = 0.76（P < 0.001）。牙科研究生住院医师指数的分布（变异系数）最大。在1986年、1996年和2006年，各次比较中设有牙科学院的都道府县每10万人口中的牙医数量均显著更高（P < 0.001）。2006年，设有牙科学院的都道府县中，牙医指数与牙科研究生住院医师指数之间的相关系数r = 0.65（P < 0.01），而没有牙科学院的都道府县中该相关系数为r = 0.11。合作型临床培训设施数量较多的都道府县设有牙科学院。
