摘要
目的采用可视化方法系统、全面、直观地揭示和比较中外循证医学领域近年来的主要研究主题、学科结构和发展趋势。方法以MEDLINE和CNKI数据库中循证医学相关文献的MeSH词和关键词为研究对象,用共词分析法、PFNET算法和可视化技术绘制国内外循证医学主题图、研究领域关系图和循证医学战略坐标图。结果国内外循证医学都处于大发展期,国外有关"Humans"的研究占94.41%,而"Animals"仅占2.57%,其中75.2%是灵长类。6个高频国别主题词和发表论文最多的前108种期刊所在国都是发达国家。国内31个省、直辖市、自治区都有论文发表,但发文量居前的省份和机构大多都处发达地区。共词分析结果显示国外循证医学研究主要集中在7个领域,依次为erapy、Methods、Standards、Research、Education、Nursing、Organization & Administration;国内7个领域则依次为治疗、护理、中医药、研究、教育、管理、信息资源,且各领域间相互联系。我国独有的特色领域是中医药和信息资源,但在方法和标准方面则大大落后于国外。结论循证医学发展最好的国家、地区和机构大都集中在经济发达地区。优势地区和机构主要应承担证据生产和方法学研究,而最迫切需要学习和使用证据的欠发达地区和机构,当务之急是学习和普及循证医学理念和证据。国内循证医学文献量、高频词和词频阈值分别为国外的28.9%、66.7%和5%,不排除样本量少带来的偏倚,国内结果仅供参考。
Objective To use visualization methods to illustrate and compare major subjects, domains, and developments in evidence-based medicine （EBM） in recent years. Methods We analyzed MeSH terms and keywords in EBM articles in the MEDLINE and CNKI databases, and developed subject charts, research field relationship charts, and strategy coordination charts using word co-occurrence, PFNET algorithms, and visualization methods. Results Rapid devel opments and growth are taking place in EBM in China and around the world. Studies on humans comprised 94.4% of the EBM studies that we identified, while animal studies accounted for 2.6% （three quarters of these animal studies were on primates）. The six countries with the largest number of EBM articles and the eight host nations for the 108 journals with the most EBM publications were from high-income countries. In China, 31 provinces, municipalities, and autonomous regions have published EBM articles, although most of these publications come from the more highly-developed areas of the country. The investigation of word co-occurrence showed that EBM articles outside of China involve seven main fields： ＂Therapy＂, ＂Methods＂, ＂Standards＂, ＂Research＂, ＂Education＂, ＂Nursing＂ and ＂Organization and Administration＂. Five of these fields （＂Therapy＂, ＂Nursing＂, ＂Research＂, ＂Education＂ and ＂Management＂） were common to China but the top seven fields for this country included ＂Traditional Chinese Medicine （TCM）＂ and ＂Information resources＂; and did not include＂Methods＂ and ＂Standards＂. Furthermore, studies on ＂Nursing＂ and ＂Research＂ were not as advanced in China as in other countries. Conclusion There are similarities between China and the rest of the world in several areas in the EBM literature but also some important differences. Throughout the world, the most resource-rich regions or organizations tend to have the most well-developed EBM. These regions and organizations are producing more evidence and conducting more methodology research than the less resourced regions and organizations. There is an urgent need for these regions and organizations to strengthen their use of evidence, to learn more about the philosophy that underpins EBM, and to improve accessibility to, and use of, evidence in choices about health care.
出处
《中国循证医学杂志》
CSCD
2011年第6期613-621,共9页
Chinese Journal of Evidence-based Medicine
基金
美国中华医学基金会(CMB)西部卫生政策循证研究中心“卫生政策与体系专题研究注册系统与数据共享平台建设”资助项目
关键词
循证医学
信息可视化
共词分析
主题分析
Evidence-based medicine （EBM）
Information visualization
Word co-occurrence
Subject analysis
