目的 了解目前外文文献中关于电子废弃物对孕妇儿童健康影响的研究现状和进展,从而为我国进一步开展该方面的研究提供理论依据和创新思路。方法 基于文献计量学方法结合信息可视化手段,采用书目信息共现挖掘系统(BICOMS)分析软件对主题词的信息进行抽取和整理,并生成共现矩阵;采用NetDraw按照中心度排列各主要主题词之间的关系,并绘制社会网络图;采用gCLUTO进行聚类分析,根据实际聚类效果,最终选择将主要主题词聚为3类,并生成可视化曲面图和可视化矩阵。结果 最终纳入电子废弃物对孕妇儿童健康影响的研究5 018篇,研究数量在年代、期刊、作者和国家分布方面不平衡。5 018篇研究共有3 975个具有实质意义的主要主题词,并且主要主题词出现频率越低,则主要主题词数量越多。其中有303个主要主题词出现频率大于10次,1 962个主要主题词出现频率为1次,频次大于59的主要主题词有32个,是目前电子废弃物对孕妇儿童影响的主要研究方向。社会网络分析结果显示,有14个高频主要主题词处于社会网络的中间位置,中心性最大。结论 环境污染对疾病的影响,儿童或青少年行为与发展,母体暴露、职业暴露等对疾病的影响是电子废弃物对孕妇儿童健康影响的主要3个研究领域。近年来外文文献研究成果远多于我国,而在探索电子废弃物对孕妇儿童健康影响的途径、危害机制、预防措施、预后研究等方面较少。希望国内研究者能够借鉴相关研究方向和主题,加以创新,不断丰富我国在该方面的研究成果。

Objective To understand the current status and progress on researches regarding the impact of electronic waste (e-waste) on the health of pregnant women and children in foreign language literature,so as to provide theoretical basis and innovative ideas for further research in this field in China. Methods Based on bibliometrics Methods combined with information visualization,bibliographic information co-occurrence mining system(BICOMS) analysis software was used to extract and collate the information of topic words,and co-occurrence matrix was generated.NetDraw was used to arrange the relationships among the main headings and draw social network diagrams.Also,gCLUTO cluster analysis was used for clustering analysis.According to the actual clustering effect,the final choice of the main topic words gathered into three categories,visual surface maps and visualization matrix were generated. Results There were 5 018 studies regarding the impact of e-waste on the health of pregnant women and children.The number of studies was balanced in the distribution of age,journals,authors and countries.In 5 018 studies,there are 3 975 main subject words with substantial meaning,And the lower the frequency of main subject words was,the more the number of main keywords would be.Among them,there were 303 main subject words appearing more than 10 times,1 962 main subject words appeared once,and 32 main themes appeared more than 59 times,which was the main research direction of the impact of e-waste on pregnant women and children.The results of social network analysis showed that there were 14 high-frequency main keywords in the middle of the social network,with the largest centrality. Conclusions The impact of environmental pollution on disease,behavior and development in children and adolescents,the impact of maternal and occupational exposure to e-waste on disease are three key areas in the researches about the impact of e-waste on the health of pregnant women and children.In recent years,foreign researchers have gained great achievements on the above three aspects,however,there are still few studies on ways of affecting health of pregnant women,mechanism,preventive measures and prognosis research.In addition,the impact of e-waste on the health of pregnant women and children is very less-researched in China,so further research is warranted