Analysis of Factors Controlling the Medical Care Expense of Senior Citizens Which Gives Influence to Households Joining Medical Care Insurance System

在日本，不同地区老年人的医疗费用差异很大。仅老年人人均医疗费用就包括极高地区和极低地区。在此基础上，从当地生活环境、自然环境、社会经济环境、医疗服务等方面分析了存在较大差异的现实情况和影响因素，并采用面板数据分析作为研究方法。这些数据是关于加入National的老年人的医疗费用的数据。2001年至2005年，广岛所有城镇的医疗保险、当地生活自然环境、社会经济环境和医疗保健服务。利用这些数据，我单独分析了地区之间医疗费用差异的现实情况和影响因素。结果表明，家庭规模、地方经济实力、自然环境、社会经济环境和医疗服务质量是影响农村医疗卫生服务质量的主要因素。我在这些结果的基础上展示了未来的政策建议。

In Japan, there is a big difference of medical care expenses of senior citizens between areas. Medical care expense per senior citizen alone is one which includes extremely high areas and extremely low areas. In the place, I made dear the realities and factors of the big difference from respects of local living, natural environment, society economy environment and medical care services.I used panel data analysis as a study method. The data are ones about medical care expenses of senior citizens who join National. Health Insurance, local living natural environment, society economy environment and medical care services about all cities and all towns in Hiroshima since 2001 to 2005. I analyzed the realities and factors of the local difference of medical care expense alone between areas with those data. As a result, it became clear that scale of family, local economic power, natural environment, society economy environment and quantities of medical care service. I showed future policy proposals on the basis of these results.