我国中医药临床对照试验文献发表趋势分析

目的：分析近20年内国内期刊发表的中医临床对照试验文献的现状及其发展趋势。方法：选择＂中文科技期刊数据库＂,对1989—2009年11月国内正式发表的中医临床对照试验文献进行检索,按照文献计量学方法,分析历年对照试验文献的数量及其构成比变化。结果：共检索出中医药临床对照试验33399篇,其中随机对照试验（randomized controlled trial,RCT）19234篇（占57.59%）,非随机对照试验（non-randomized controlled trial,non-RCT）14165篇（占42.41%）,RCT文献的数量和构成比呈逐年递增趋势,non-RCT文献的构成比呈逐年递减趋势,二者构成比及比值经Runs游程检验显示差异有统计学意义（P=0.003）。结论：中医药临床对照研究的文献数量呈逐年增长趋势,非随机对照研究文献数量逐渐减少,而随机对照研究文献逐年增加。

Bibliometrical Analysis of Literature on Clinical Controlled Trial of Chinese Medicine in China

Objective：To investigate the currency and development trend of clinical controlled trials of Chinese Medicine issued on journals in our country over 20 years.Methods：All of Chinese Medicine literatures concerning clinical controlled trial from Chinese Database of Science Journals during the period of 1989 to 2008 were retrieved and bibliometrical analysis on the quantity and constituent ratio of randomized controlled trial（RCT）literature and non-randomized controlled trial（non-RCT）literature of every year was performed.Results：The total number of articles of clinical controlled trial was 33399 including 19234 RCT articles（57.59%）and 14165 non-RCT articles（42.41%）.The number and constituent ratio of RCT literature gradually increased while the constituent ratio of non-RCT smoothly decreased during the years.These was significant difference of constituent ratio of literature between RCT and non-RCT by runs test（P0.05）.Conclusion：The number of clinical controlled trial literature gradually upgrades and the study emphasis conveys from non-RCT to RCT.