基于PubMed数据库的职业紧张文献计量分析与主题挖掘研究

Literature Analysis of Occupational Stress Based on Pubmed Databaseby Bibliometrics and Data Mining

目的基于宏观视角,了解职业紧张科学文献发文量、主题更迭状况,为职业紧张进一步研究提供参考依据。方法引入数据挖掘技术、文献计量学理论分析PubMed数据库中职业紧张研究文献题录信息。利用E-Utility结合R软件Rcurl包逐篇获取PubMed中符合本研究检索策略的文献题录信息,借助Rweka分词工具对语料进行二元分词,形成文档词条矩阵用于文本挖掘。调用R软件中主题模型与共现分析对文本词条矩阵进行挖掘。结果自1946-2017年职业紧张文献共60718,最终纳入文献11068篇,年度发文量呈指数上升;美国发表文献最多,占世界累计发文数量的24.1%(n=2325);主题4(职业压力源;职业压力的相关结局)和主题9(职业压力工作倦怠;工作满意度;医护人员的职业紧张管理)的相关文章数量增长速度明显高于其他主题。结论自1946-2017年,职业紧张研究热点持续增长,研究主题多集中于职业压力源、职业压力的相关结局、职业紧张与工作倦怠、工作满意度及医护人员职业紧张管理,职业紧张干预是未来研究趋势。

Objective To study the quantity and topic change of scientific literature on occupational stress from macro perspective,and to provide the reference for the futher research on the occupational stress.Methods Data mining and bibliometrics theory were conducted to analyze the information of occupational stress research bibliography in Pubmed database.The literature bibliographic information were obtained by using E-Utility combine with Rcurl package of R software in PubMed that conform to the retrieval strategy,and also use the Rweka word segmentation tool to perform binary segmentation on the corpus to form a document entry matrix for text mining.The topic model and co-occurrence analysis in R software were used to mine the text entry matrix.Results During 1946 to 2017,a total of 11068 literature had been finally included in the study.The annual of literature had increased exponentially.The United States started earlier on occupational stress research,which had 24.1%(n=2325)of published papers in worldwide.Topics 4 and 9 had significant increased faster than other topics.Conclusion From 1946 to 2017,the papers of occupational stress have continued to grow,the research topics pay more attention to the stressors,related-disease of occupational stress,job burnout,job satisfaction,stress management of healthcare workers.Occupational stress intervention would be a research trend in the future.