分析金砖国家冠心病研究产出，揭示中国领先、合作广泛但差距仍存。
Mapping Research Productivity of BRICS Countries with Special Reference to Coronary Artery Disease (CAD): A Scientometric Study
- 基于1990–2019年数据，统计5万篇文献的发表趋势与合作模式。
- 中国贡献最多，97.91%论文为合著，合作度达0.98，期刊以英文为主（93%以上）。
- 验证洛特卡定律等科学计量规律，建议加强科研支持与国际合作。
本研究利用Web of Science数据库1990至2019年的数据，对金砖国家（巴西、俄罗斯、印度、中国、南非）在冠心病（CAD）领域的研究产出进行了全面的科学计量分析，共分析50,036条记录。结果表明，冠心病相关论文数量呈稳步增长，中国居于首位，其次为巴西、俄罗斯、印度和南非。英文作为主要交流语言，占比超过93%。作者与合作分析显示，97.91%的研究为合著，合作度达0.98，凸显该领域研究的集体性特征。研究验证了洛特卡定律（Lotka's Law）在作者生产力、布拉德福定律（Bradford's Law）在期刊分布及齐普夫定律（Zipf's Law）在关键词频率中的适用性，而普赖斯平方根定律（Price's Square Root Law）不适用。主要出版形式为期刊文章（79.7%），其中《Kardiologiya》（俄罗斯）为最活跃期刊。研究显示金砖国家冠心病研究产出与合作显著增长，但成员国间仍存在明显差距。建议提升个人作者产出效率，拓展国际协作，并通过制度与政府支持强化心血管研究能力。研究成果可为政策制定者、资助机构及学术界提供参考。
原文摘要 · Abstract (English)
This study presents a comprehensive scientometric analysis of research productivity on Coronary Artery Disease (CAD) among the BRICS countries, Brazil, Russia, India, China, and South Africa, using data retrieved from the Web of Science database for the period 1990 to 2019. A total of 50,036 records were analyzed to assess publication growth trends, authorship patterns, collaboration levels, and citation impact. The findings reveal a steady increase in CAD-related publications, with China emerging as the leading contributor, followed by Brazil, Russia, India, and South Africa. English dominated as the primary language of communication, accounting for over 93% of publications. Authorship and collaboration analysis indicate a high degree of joint research, with 97.91% of studies being co-authored and a degree of collaboration of 0.98, underscoring the collective nature of scientific inquiry in this domain. The study validates the applicability of Lotkas Law for author productivity, Bradfords Law for journal distribution, and Zipfs Law for keyword frequency, while the Price Square Root Law was found inapplicable. The predominant publication format was journal articles (79.7%), and Kardiologiya (Russia) emerged as the most prolific journal. The results demonstrate significant growth in CAD research output and collaboration within BRICS, though notable disparities persist among member nations. The study recommends enhancing individual author productivity, expanding international collaboration, and supporting CAD research through strategic institutional and governmental initiatives. These findings provide valuable insights for policymakers, funding agencies, and the academic community to strengthen cardiovascular research capacity within developing economies.
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