Division of Neurosurgery, Department of Surgery, University of Toronto, Toronto, Ontario, Canada; Division of Neurosurgery, St Michael's Hospital, Toronto, Ontario, Canada; Division of Neurosurgery, Department of Neurosciences, College of Medicine and Philippine General Hospital, University of the Philippines Manila, Manila, Philippines; College of Medicine, University of the Philippines Manila, Manila, Philippines.
Division of Neurosurgery, St Michael's Hospital, Toronto, Ontario, Canada; Division of Neurosurgery, Department of Neurosciences, College of Medicine and Philippine General Hospital, University of the Philippines Manila, Manila, Philippines; College of Medicine, University of the Philippines Manila, Manila, Philippines.
J Clin Neurosci. 2022 Dec;106:159-165. doi: 10.1016/j.jocn.2022.10.028. Epub 2022 Nov 4.
Bibliometric analysis can provide insight into the growth, development and dissemination of research in neurosurgery. Little work has been done to examine the role of country-specific characteristics affecting research productivity. We aimed to characterize andcompare the research productivity among SEA countries in terms of bibliometric indicesand determine associations with country-specific factors.
We performed a systematic search of all articles by authors affiliated with a neurosurgical department in any of the Southeast Asian countries, indexed in 3 databases from inception to June 10, 2020. Bibliometric indices - number of publications, number of citations, average citations per publication, h-index, and the i-10-index - were computed for each country. Correlations between the indices and country-specific characteristics (population size, GDP per capita, percentage of GDP allocation to research and development (R&D), number of neurosurgeons, number of neurosurgeons per capita, and number of collaborations with non-SEA authors) were determined.
The number of publications showed an increasing trend up to 2019. Most studies were cohort studies (37%) or case reports or series (37%). Of the country-specific factors analyzed, only percentage of the GDP allocated to R&D was positively correlated with number of publications (p = 0.0004), total citations (p < 0.0001), H-index (p < 0.0001), and i(10)-index (p < 0.0001). Number of collaborations also positively correlated with the same indices.
Our bibliometric analysis showed increasing contribution by neurosurgeons in the SEA region. Correlational analysis support the view that increased R&D budget allocation and international collaboration can improve neurosurgical research capacity and productivity.
文献计量分析可以深入了解神经外科学研究的增长、发展和传播情况。几乎没有研究致力于探讨影响研究生产力的特定国家特征的作用。我们旨在根据文献计量指标描述和比较东南亚国家的研究生产力，并确定与国家特定因素的关联。
我们系统地检索了所有在 2020 年 6 月 10 日之前，在东南亚任何一个国家的神经外科系工作的作者发表的文章，这些文章均被 3 个数据库收录。为每个国家计算了文献计量指标，包括出版物数量、引用数量、平均每篇出版物的引用量、h 指数和 i-10 指数。确定了这些指数与国家特定特征（人口规模、人均 GDP、用于研究和开发（R&D）的 GDP 百分比、神经外科医生数量、人均神经外科医生数量和与非东南亚作者的合作数量）之间的相关性。
出版物数量的趋势呈上升趋势，直到 2019 年。大多数研究是队列研究（37%）或病例报告或系列（37%）。在所分析的国家特定因素中，只有用于 R&D 的 GDP 百分比与出版物数量（p=0.0004）、总引用量（p<0.0001）、h 指数（p<0.0001）和 i(10)-指数（p<0.0001）呈正相关。合作数量也与这些指数呈正相关。
我们的文献计量分析显示，东南亚地区的神经外科医生的贡献在不断增加。相关性分析支持以下观点，即增加 R&D 预算拨款和国际合作可以提高神经外科学研究能力和生产力。
