School of Humanities and Social Sciences, Hiroshima University, Higashihiroshima, Hiroshima, Japan.
Front Public Health. 2022 Dec 14;10:1050035. doi: 10.3389/fpubh.2022.1050035. eCollection 2022.
This study quantitatively analyzed healthcare administration studies in Japan using text mining, focusing on articles published during 1994-2021 in the (prior to 2008, the journal was called ). Both the co-occurrence network and the correspondence analysis (these are extracted words that refer to the two systems) demonstrate two major changes: (1) the introduction of the long-term care insurance system, which was enacted in 1997 and came into effect in 2000, and (2) the introduction of the late-stage medical care system for the elderly in 2008, both of which had a significant impact on the Japanese public health and welfare system. and were conducted to understand changes in research interests. The analysis used two time periods following a change in the journal's name in 2008. To readily comprehend changing research trends, 10-year segments were considered, resulting in three time periods. The research features and trends during the aforementioned periods were examined using correspondence analysis. Configuration figures derived from this analysis plotted (first dimension) against certain (second dimension). The extracted words displayed in the configuration maps at the axes' intersection were , and . They revealed no distinctive features compared with other words and were commonly used in article titles within this journal during each period. The following results were obtained from the correspondence analysis: first, changes in the geriatric care system of public medical insurance and the introduction of the long-term care insurance system in 2000 were expressed in the characteristics of the extracted words; second, in the 14 years after the journal's name changed, published studies frequently referred to the roles of doctors, nurses, and other healthcare professionals. A chi-squared test on these extracted words and the period classification confirmed a statistically significant relationship between them.
本研究采用文本挖掘技术对日本的医疗管理研究进行了定量分析，重点分析了 1994 年至 2021 年间在该领域发表的文章（2008 年前，该期刊名为 ）。共现网络和对应分析（这是指两个系统的提取词）都显示了两个主要变化：（1）1997 年引入的长期护理保险制度，于 2000 年生效；（2）2008 年引入的老年人晚期医疗制度，这两个制度对日本的公共卫生和福利制度产生了重大影响。进行 和 以了解研究兴趣的变化。该分析使用了 2008 年期刊更名后的两个时期。为了方便理解不断变化的研究趋势，考虑了 10 年的时间段，从而形成了三个时期。使用对应分析对上述各时期的研究特点和趋势进行了检验。从该分析中得出的配置图将 （第一维）与某些 （第二维）进行了对比。在轴相交处的配置图中显示的提取词为 、 和 。与其他词相比，它们没有独特的特征，并且在该期刊的每个时期的文章标题中都经常使用。对应分析得出以下结果：首先，公共医疗保险中的老年护理系统的变化和 2000 年长期护理保险制度的引入体现在提取词的特征中；其次，在期刊更名后的 14 年中，发表的研究经常提到医生、护士和其他医疗保健专业人员的作用。对这些提取词和时间段分类进行卡方检验证实了它们之间存在统计学上的显著关系。
