PubMed数据库中1858/2010年有关青光眼的文献计量学分析

Bibliometric analysis of biomedical publications on glaucoma literature in PubMed from 1858 to 2010

目的:对青光眼文献进行计量分析,以确定文献增长规律和发展趋势。方法:登录www.ncbi.nlm.nih.gov/PubMed后用"glaucoma(青光眼)"检索"从1858-01-01/2010-12-31"的文献量,同时检索数据库中文献的年文献量(每5a为一时间段)、中文收录情况、语言分布、文献类型分布、期刊分布、相关研究内容情况等,根据文献增长规律的理论,对检索出的数据进行分析。结果:1858/2010年PubMed数据库收录青光眼文献45514篇,逐年累积文献量均呈递增趋势,其方程近似直线(Y=579.34X-568.38,R2=0.882)。1858/2010年青光眼文献以英语为主导(71.50%),中文发表的文献量排在第12位(0.31%),PubMed收录中文青光眼文献从2006年开始,2009年后明显上升。根据PubMed数据库文献类型,包括Clinical Trial(2947篇)、Editorial(648篇)、Letter(1727篇)、Meta-Analysis(81篇)、Practice Guideline(15篇)、Randomized Controlled Trial(1787篇)、Review(3633篇)、Others(34678篇);收录青光眼文献根据JournalGroups分为Core Clinical Journals(625篇)、Dental Journals(5篇)、Nuring Journals(42篇)、Others(44844篇);与Humans相关文献37194篇,Animals相关文献4223篇,Others为4099篇。PubMed中19种青光眼核心期刊收录文献20526篇(45.10%)。结论:青光眼研究的文献量均呈上升趋势,表明青光眼的研究仍是一个热点,影响青光眼文献增长的主要因素是学科发展所处的环境条件。

AIM：To determine the growth rule and trendency of the glaucoma literature by bibliometric analysis. METHODS： Logging in www. ncbi. nlm. nih. gov/PubMed, ＂glaucoma＂ was used to retrieve from 1858-01-01 to 2010- 12-31 literature volume, meanwhile, literature volume （amount of every five years for a time period）, Chinese collected, language distribution, document type distribution, journal distribution, and related research content in a database were retrieved, according to the theory of increasing law of the literature, the data retrieved were analysed. RESULTS： From 1858 to 2010, PubMed database included 45514 articles of glaucoma literature, all the cumulative literature volume was increasing year by year, the equation was approximate line （Y = 579.34X-568.38, R2 = 0.882）. 1858-2010 glaucoma literature was dominated in English （71. 50%）, literature volume published in Chinese was ranked in the twelveth （0. 31%）, PubMed began to include Chinese glaucoma literature in 2006, which increased dramatically after 2009 years. According to the PubMed database literature types, it included Clinical Trial （ 2947 articles）, Editorial （ 648 articles）, Letter （ 1727 articles ）, Meta-Analysis （ 81 articles ）, Practice Guideline （15 articles）, Randomized Controlled Trial （ 1787）, Review （3633 articles）, Others （ 34678 articles） ; glaucoma literature included according to Journal Groups were divided into Core Clinical Journals （625 articles）, Dental Journals （5 articles）, Nursing Journals （42 articles）, Others （44844 articles）; 37194 articles were related with Humans, Animals related literatures were 4223 articles, Others 4099. Nineteen kinds of glaucoma core journal in PubMed included 20526 articles （45.10% collected literature）. CONCLUSION： The amount of research articles about glaucoma shows ascendant trend, indicating that glaucoma is still a hot tissue, the main factors of the influence on glaucoma literature growth is the environmental conditions of subject development.