环境污染与胃癌相关人群研究的知识图谱分析

目的了解环境污染与胃癌相关人群研究的国内外现状,为今后胃癌精准防控研究提供科学依据。方法以SCI和CNKI数据库中1989-2018年收录的胃癌与环境污染原创性人群研究文献为数据基础,使用BibExcel、VosViewer、R等分析工具,分析中英文文献的时间分布、地区分布、学科分布、机构合作、关键词共现等情况。结果近30年中文发表的我国环境污染与胃癌相关的人群研究论文数量最多集中在1995-2003年之间,从2000年以后明显下降,近年来保持低数量产出态势,SCI论文数量总体呈上升趋势;SCI文献产出最多的国家是美国和中国;中文文献产出最多的是江西省;本领域50%以上的SCI文献集中在环境科学和生态学,公共、环境和职业健康两个学科;中文论文主要关注的热点包括土壤微量元素及污染物、水污染与胃癌两个方面;砷、硝酸盐、金属污染等是主要的研究问题;中英文文献研究的具体污染物不尽相同。结论我国环境污染与胃癌相关人群研究需要进一步扩大国内外研究机构之间的跨学科合作与交流,除无机环境污染物之外,还应对有机污染物暴露进行充分考虑。

Knowledge Map Analysis of Environmental Pollution and Gastric Cancer Related Population Research

Objectives To understand the current situation of research on environmental pollution and gastric cancer related population at home and abroad,and to provide scientific basis for future research on the precise prevention and control of gastric cancer in China. Methods Based on the data of the original population study on gastric cancer and environmental pollution cited by SCI and CNKI from 1989 to 2018,BibExcel,VosViewer,R and other analytical tools were used to analyze the temporal distribution,regional distribution,disciplinary distribution,institutional cooperation and keyword co-occurrence of Chinese and English literatures. Results In the past 30 years,the number of research papers in Chinese on environmental pollution and gastric cancer was relatively higher from 1995 to 2003,and declined significantly since 2000. In recent years,it maintained a low-number output trend. The number of SCI papers has generally increased. The countries with the largest output of SCI literature are the United States and China. Of literatures published in Chinese,most of the studies carried out in Jiangxi Province. More than 50% of SCI literatures in this field are concentrated in environmental sciences and ecology,and mainly focus on public,environment and occupational health. The hotspots that were focused by Chinese papers including soil trace elements and pollutants,water pollution and gastric cancer.Arsenic,nitrate and metal pollution are the main research issues. The specific pollutants of concern in Chinese and English articles are not in complete accord. Conclusions The interdisciplinary cooperation and communication between domestic and foreign research institutions should be strengthened for the future research on environmental pollution and gastric cancer in China. In addition to inorganic pollutions,the exposure of organic pollutants should also be fully considered.