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目的通过关键词共词分析揭示我国罕见病研究主题结构及热点研究领域。方法检索CNKI数据库,收集2005-2015年国内发表的有关罕见病研究的文献,导出题录,用Bibexcel软件生成高频关键词共词矩阵,用SPSS 19.0进行聚类分析和多维尺度分析。结果获取有效题录1 458条,筛选出30个高频关键词,聚类分析显示近来年罕见病的研究主题可以划分为4个类别。结论我国罕见病研究主题明确,热点研究领域范围有限。
Objective To reveal the theme structure and hot research areas of rare diseases in China through the analysis of keyword co-word. Methods The CNKI database was searched, and the literature about rare disease research published in China from 2005 to 2015 was collected. The bibliographic records were derived. The high-frequency keyword co-word matrix was generated using Bibexcel software. Cluster analysis and multidimensional scaling analysis were performed with SPSS 19.0. Results A total of 1 458 effective bibliographies were obtained and 30 high-frequency keywords were screened out. Cluster analysis showed that the research topics of rare diseases in recent years can be divided into 4 categories. Conclusions The theme of rare diseases in China is clear, and there are limited hot research areas.