Information Services, National Institute for Health and Care Excellence (NICE), Manchester, UK.
Information Services, National Institute for Health and Care Excellence (NICE), London, UK.
Res Synth Methods. 2022 Nov;13(6):760-789. doi: 10.1002/jrsm.1577. Epub 2022 Jun 23.
Systematic searches are integral to identifying the evidence that is used in National Institute for Health and Care Excellence (NICE) public health guidelines (PHGs). This study analyses the sources, including bibliographic databases and other techniques, required for PHGs. The aims were to analyse the sources used to identify the publications included in NICE PHGs; and to assess whether fewer sources could have been searched to retrieve these publications. Data showing how the included publications had been identified was collated using search summary tables. Three scenarios were created to test various combinations of sources to determine whether fewer sources could have been used. The sample included 29 evidence reviews, compiled using 13 searches, to support 10 PHG topics. Across the PHGs, 23 databases and six other techniques retrieved included publications. A mean reduction in total results of 6.5% could have been made if the minimum set of sources plus Cochrane Library, Embase, and MEDLINE were searched. On average, Cochrane Library, Embase, and MEDLINE contributed 76.8% of the included publications, with other databases adding 11% and other techniques 12.2%. None of the searches had a minimum set that was comprised entirely of databases. There was not a core set of sources for PHGs. A range of databases and techniques, covering a multi-disciplinary evidence base, was required to identify all included publications. It would be possible to reduce the number of sources searched and make some gains in productivity. It is important to create a tailored set of sources to do an efficient search.
系统检索是确定英国国家卫生与保健优化研究所（NICE）公共卫生指南（PHG）所使用证据的重要组成部分。本研究分析了 PHG 所需的来源，包括书目数据库和其他技术。目的是分析用于确定 NICE PHG 中包含的出版物的来源；并评估是否可以减少搜索源以检索这些出版物。使用搜索摘要表汇总了显示如何识别所包含出版物的数据。创建了三个场景来测试各种来源的组合，以确定是否可以减少来源的使用。该样本包括 29 份证据综述，使用 13 次搜索来支持 10 个 PHG 主题。在所有 PHG 中，23 个数据库和六种其他技术检索到了包含的出版物。如果仅搜索最小的源集加 Cochrane Library、Embase 和 MEDLINE，则可以将总结果减少 6.5%。平均而言，Cochrane Library、Embase 和 MEDLINE 为包含的出版物贡献了 76.8%，其他数据库增加了 11%，其他技术增加了 12.2%。没有一个搜索的最小源集完全由数据库组成。没有针对 PHG 的核心源集。需要一系列数据库和技术，涵盖多学科的证据基础，才能确定所有包含的出版物。减少搜索源的数量并提高一些生产力是可行的。创建一套量身定制的源来进行有效的搜索非常重要。
