Abstract
Purpose
The aim of this study was to measure and compare the geographical inequalities in radiotherapy health resources between the Hokkaido-Tohoku and Tokyo districts of Japan.
Materials and methods
The numbers of radiotherapy facilities, radiologists, and radiological technologists were used to represent radiotherapy health resources. The target areas were 11 prefectures in the Hokkaido-Tohoku and Tokyo districts. The Gini coefficient (GC) was used to measure inequalities in health resources in relation to the population and area of each secondary medical care zone. Correlation analysis was performed to clarify the relation between the GC and the all-cancer mortality rate per 100 000 people.
Results
The mean population and area GCs of Yamagata Prefecture were the smallest, whereas the mean population GC of Tokyo and the mean area GC of Hokkaido were the largest. The mean GCs of radiotherapy facilities and radiological technologists were higher in the Tokyo district than in the Hokkaido-Tohoku district. No significant correlation was found between GC and cancer mortality.
Conclusion
Geographical inequalities in radiotherapy health resources tended to be larger in the Tokyo district than in the Hokkaido-Tohoku district. It is expected that the radiotherapy system will be substantially improved by the Basic Plan to Promote Cancer Control Programs.
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References
Editorial Board of the Cancer Statistics in Japan. Cancer statistics in Japan 2008. Foundation for promotion of cancer research (Tokyo), October 2008.
Basic Plan to Promote Cancer Control Programs, Japanese Ministry of Health, Labour, and Welfare, June 2007. http://www.mhlw.go.jp/shingi/2007/06/dl/s0615-1a.pdf (accessed March 16, 2009) (in Japanese).
Kobayashi Y, Takaki H. Geographic distribution of physicians in Japan. Lancet 1992;340:1391–1393.
Tanihara S, Zhang T, Ojima T, Nakamura Y, Yanagawa H, Kobayashi M. Geographic distribution of medical supplies and the numbers of hospital inpatients in the secondary medical areas in Japan. Nippon Koshu Eisei Zasshi 1997;44:688–693 (in Japanese).
Kokaze A, Yoshida M, Sekine Y, Teruya K, Takeda N, Uchida Y, et al. Trends of geographic and age distribution of obstetrician-gynecologists and pediatricians with contrast to the decrease in the number of children in Japan. Minzoku Eisei 2001;67:291–304.
Inoue S, Nomura K, Yano E. Geographical distribution of judo therapist facilities and orthopedic facilities. Nippon Koshu Eisei Zasshi 2008;55:375–380 (in Japanese).
Toyabe S. Trend in geographic distribution of physicians in Japan. Int J Equity Health 2009;8:5.
Ogasawara K, Nambu T, Sakurai T. Radiological equipment and staffs distribution in Hokkaido, Japan: Lorenz curve and locational Gini index analyses. Iryo Keizai Kenkyu 2004;14:17–26.
Miyagishima K, Kawaguchi T. Chronological analysis of disparities in numbers of ordinary hospital beds and X-ray computed tomography scanners among secondary medical care sectors. Nippon Eiseigaku Zasshi 2006;61:407–413 (abstract in English).
Teshima T, Numasaki H, Shibuya H, Nishio M, Ikeda H, Ito H, et al. Japanese structure survey of radiation oncology in 2005 (first report). 2005 (first report). J Jpn Soc Ther Radiol Oncol 2007;19:181–192 (abstract in English).
Teshima T, Numasaki H, Shibuya H, Nishio M, Ikeda H, Ito H, et al. Japanese structure survey of radiation oncology in 2005 (second report). 2005 (second report). J Jpn Soc Ther Radiol Oncol 2007;19:193–205 (abstract in English).
Teshima T, Numasaki H, Shibuya H, Nishio M, Ikeda H, Ito H, et al. Japanese structure survey of radiation oncology in 2005 based on institutional stratification of patterns of care study. Int J Radiat Oncol Biol Phys 2008;72:144–152.
Horev T, Pesis-Katz I, Mukamel DB. Trends in geographic disparities in allocation of health care resources in the US. Health Policy 2004;68:223–232.
Williams RF, Doessel DP. Measuring inequality: tools and an illustration. Int J Equity Health 2006;5:5.
Theodorakis PN, Mantzavinis GD, Rrumbullaku L, Lionis C, Trell E. Measuring health inequalities in Albania: a focus on the distribution of general practitioners. Hum Resource Health 2006;4:5.
Morrow JS. Toward a more normative assessment of maldistribution: the Gini Index. Inquiry 1977;14:278–292.
Day population of Tokyo, 2005 Population Census. http://www.toukei.metro.tokyo.jp/tyukanj/2005/tj05gaiyou.pdf (accessed August 17, 2009) (in Japanese).
Guideline for designated cancer care hospitals, Japanese Ministry of Health, Labour and Welfare. http://www.mhlw.go.jp/bunya/kenkou/dl/gan_byoin02.pdf (accessed May 13, 2009) (in Japanese).
Handout 2-1 at the 9th Cancer Control Promotion Council, Japanese Ministry of Health, Labour, and Welfare. http://www.mhlw.go.jp/shingi/2009/02/dl/s0226-15e.pdf (accessed May 13, 2009) (in Japanese).
Ikeda H, Nishio M, Kataoka M, Matsumoto Y, Hatano K, Ogino T, et al. Structure analysis of designated hospital for cancer control in Japan from JASTRO census survey database 2005. J Jpn Soc Ther Radiol Oncol 2008;20:13–22 (abstract in English).
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Ohba, H., Narumi, M., Hosokawa, Y. et al. Measuring the inequalities in radiotherapy health resources in Japan: comparison of the Hokkaido-Tohoku and Tokyo districts. Jpn J Radiol 28, 20–26 (2010). https://doi.org/10.1007/s11604-009-0376-6
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DOI: https://doi.org/10.1007/s11604-009-0376-6