One recent problem faced by the Japanese medical care system is an imbalance in the distribution of doctors and healthcare resources among the various regions of the country. In Kumamoto Prefecture, the numbers of both doctors and certificated dermatologists per 100,000 people are higher than the average number per 100,000 people in Japan. However, there is still a marked imbalance in the distribution of doctors and dermatologists among the various districts of the prefecture. To investigate this issue, we examined the National Health Insurance claims made throughout May of 2009. The local consultation rate in the Kumamoto, Yatsushiro, and Kuma Medical Districts was greater than 90%, while it was only 22% in the Aso Medical District. Patients from the northern Kumamoto area often went to the Kumamoto Medical Districts, and patients in the Aso Medical District often went to the Kikuchi or Kamimashiki Medical Districts. Patients aged 15 to 64 years went to other medical districts more frequently than did patients in other age group. Approximately 75% of the patients suffering from skin diseases consulted dermatologists in the Kumamoto Prefecture, and 78% of the patients consulted dermatologists within the Kumamoto Medical District.
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