Parkhill Anne, Hill Kelvin
Aptly Information Design, Hawthorn, Vic., Australia.
Health Info Libr J. 2009 Mar;26(1):47-55. doi: 10.1111/j.1471-1842.2008.00784.x.
The Australian National Stroke Foundation appointed a search specialist to find the best available evidence for the second edition of its Clinical Guidelines for Acute Stroke Management.
To identify the relative effectiveness of differing evidence sources for the guideline update.
We searched and reviewed references from five valid evidence sources for clinical and economic questions: (i) electronic databases; (ii) reference lists of relevant systematic reviews, guidelines, and/or primary studies; (iii) table of contents of a number of key journals for the last 6 months; (iv) internet/grey literature; and (v) experts. Reference sources were recorded, quantified, and analysed.
In the clinical portion of the guidelines document, there was a greater use of previous knowledge and sources other than electronic databases for evidence, while there was a greater use of electronic databases for the economic section.
The results confirmed that searchers need to be aware of the context and range of sources for evidence searches. For best available evidence, searchers cannot rely solely on electronic databases and need to encompass many different media and sources.
澳大利亚国家中风基金会指定一名检索专家,为其《急性中风管理临床指南》第二版寻找现有最佳证据。
确定不同证据来源对指南更新的相对有效性。
我们检索并回顾了来自五个有效证据来源的临床和经济问题参考文献:(i)电子数据库;(ii)相关系统评价、指南和/或原始研究的参考文献列表;(iii)过去6个月若干关键期刊的目录;(iv)互联网/灰色文献;以及(v)专家。对参考文献来源进行记录、量化和分析。
在指南文件的临床部分,除电子数据库外,更多地使用了先前知识和其他来源作为证据,而在经济部分则更多地使用了电子数据库。
结果证实,检索人员需要了解证据检索的背景和来源范围。为获取现有最佳证据,检索人员不能仅依赖电子数据库,还需要涵盖许多不同的媒介和来源。