Prospective comparison of search strategies for systematic reviews: an objective approach yielded higher sensitivity than a conceptual one
Prospective comparison of search strategies for systematic reviews: an objective approach yielded higher sensitivity than a conceptual one
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DOI：
10.1016/j.jclinepi.2016.05.002
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发表时间：
2016-09-01
影响因子：
7.2
通讯作者：
Waffenschmidt, Siw
中科院分区：
文献类型：
--
作者：
Hausner, Elke;Guddat, Charlotte;Waffenschmidt, Siw
背景：在系统综述的搜索策略的开发中，通常建议使用“概念方法”来识别策略中不存在有效搜索过滤器的部分的适当搜索词。然而，基于文本分析确定的搜索词的“客观方法”正越来越多地得到应用。目的：前瞻性地比较目标与概念方法的搜索策略的发展。方法：并行开发两种不同的MEDLINE检索策略，用于涵盖一系列主题和研究设计的五个系统综述。卫生保健质量和效率研究所（IQWiG）对同样的研究问题采用了客观方法，外部专家采用了概念方法。对于每个系统综述，将检索到的引文进行合并，并对整个引文池进行筛选，以确定灵敏度和精度。结果：客观方法加权平均灵敏度为97%，精密度为5%。概念方法对应的值分别为75%和4%。结论：我们的研究结果表明，IQWiG应用于搜索策略制定的客观方法比概念方法具有更高的灵敏度和相似的精度。客观方法的主要优点是，它在不同的搜索中产生一致的结果。(C) 2016作者。Elsevier Inc.出版。
Background: In the development of search strategies for systematic reviews, "conceptual approaches" are generally recommended to identify appropriate search terms for those parts of the strategies for which no validated search filters exist. However, "objective approaches" based on search terms identified by text analysis are increasingly being applied.Objectives: To prospectively compare an objective with a conceptual approach for the development of search strategies.Methods: Two different MEDLINE search strategies were developed in parallel for five systematic reviews covering a range of topics and study designs. The Institute for Quality and Efficiency in Health Care (IQWiG) applied an objective approach, and external experts applied a conceptual approach for the same research questions. For each systematic review, the citations retrieved were combined and the overall pool of citations screened to determine sensitivity and precision.Results: The objective approach yielded a weighted mean sensitivity and precision of 97% and 5%. The corresponding values for the conceptual approach were 75% and 4%.Conclusion: Our findings indicate that the objective approach applied by IQWiG for search strategy development yields higher sensitivity than and similar precision to a conceptual approach. The main advantage of the objective approach is that it produces consistent results across searches. (C) 2016 The Author(s). Published by Elsevier Inc.