目的
研究2020年中国医院和公共卫生单位在高分期刊上(《期刊引用报告》中影响因子大于等于10的期刊,即JCR IF2019≥10)的论文发表情况。
方法
在PubMed数据库中搜索中国医院和中国公共卫生单位从2020年1月1日至2020年12月31日在高分期刊上发表的文章,分析其影响因子分布、专业分布、发表量前十的期刊、IF2019前十期刊论文数量和中国10分以上期刊论文数量,同时进一步分析了四大医学期刊(即New England Journal of Medicine (NEJM), Journal of the American Medical Association (JAMA), Lancet and British Medical Journal (BMJ))和CNS期刊(即Cell, Nature和Science)等顶级期刊上论文的情况。
结果
2020年中国医院和公共卫生单位分别发表高分论文5348篇和816篇,有11.6%和21.8%的论文发表在IF>25的期刊上,主要发表在细胞生物学和综合科学领域。IF2019排名前十的期刊发表这些论文的占比很低,均不到其总发文量的7%。中国医院和公共卫生单位在四大医学期刊和CNS上均有论文发表,分别占这些期刊总发文量的0.9%–6.9%和0.4%–1.9%。其中50%以上为合作研究,且大部分是国际合作;两者在顶级期刊上发表的论文中分别有近1/3和1/2是COVID-19相关,但大部分不到这些期刊发表COVID-19相关论文总数的10%。
结论
2020年中国医院和公卫单位在顶级期刊上发表的论文数量很少,高质量的论文还有待进一步提高。两者在顶级期刊上发表的COVID-19相关论文比重较大,但是占比很小,表明我国科研人员对于热点的敏感度还有待加强。
Analysis of high impact articles published by authors from Chinese hospitals and public health units in 2020
Objective
To study the articles published in high-impact journals [Journal Citation Report Impact factor (IF)2019≥10] by authors from Chinese hospitals and public health units in 2020.
Methods
Articles published by authors from Chinese hospitals and Chinese public health units in high-impact journals from January 1, 2020 to December 31, 2020 were searched in PubMed database. Distribution of IFs for the articles, type of research fields, top 10 journals that published mostly articles, the number of articles published in the top 10 journals with highest IF2019 and the number of articles in Mainland Chinese journals with IF2019≥10 were analyzed. At the same time, the articles in the top four popular general medical journals (New England Journal of Medicine (NEJM), Journal of the American Medical Association (JAMA), Lancet and British Medical Journal (BMJ)) and Cell, Nature, and Science (CNS) were further analyzed.
Results
The total number of articles published by authors from Chinese hospitals and public health units in 2020 were 5348 and 816, respectively. There were 11.6% and 21.8% of the articles published in journals with IF > 25, mainly in the research fields of cell biology and multidisciplinary sciences. IF2019 of the top 10 journals that published most Chinese articles were lower than 20. The proportions of these Chinese articles published by the top 10 journals were very low, which were less than 7% of the total numbers of articles published in these journals. Authors from Chinese hospitals and public health units had published papers in the four popular general medical journals and CNS, and the number of these articles were accounted for 0.9%–6.9% and 0.4%–1.9% of the total number of articles published in these journals, respectively. More than 50% of articles published on four popular general medical journals and CNS were collaborative researches, and most of them were international collaborations. Nearly 1/3 and 1/2 of articles published by authors from Chinese hospitals and public health units on four popular general medical journals and CNS were COVID-19 related articles, respectively. However, the proportions were less than 10% of the total number of COVID-19 related articles published in these journals.
Conclusion
The number of articles published in top journals by authors from Chinese hospitals and public health units in 2020 is small, which need to be further improved. The proportion of COVID-19 related articles published in top journals is small, indicating that the sensitivity of Chinese researchers to research focus needs to be strengthened.