Gray literature: An important resource in systematic reviews.
Gray literature: An important resource in systematic reviews.
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DOI：
10.1111/jebm.12265
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发表时间：
2017-08-01
影响因子：
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通讯作者：
Paez, Arsenio
中科院分区：
文献类型：
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作者：
Paez, Arsenio
系统评价有助于分析和传播证据，使用严格和透明的方法来产生针对重点研究问题的经验性答案。识别与研究问题相关的所有证据是系统评价的一个重要组成部分，也是一个挑战。灰色文献，或未在商业出版物上发表的证据，可以对系统评价做出重要贡献。灰色文献可以包括学术论文，包括论文和学位论文，研究和委员会报告，政府报告，会议论文和正在进行的研究等。它可以提供商业出版文献中找不到的数据，为传播可能无法传播的无效或负面结果的研究提供了一个重要论坛。因此，灰色文献可以减少发表偏倚，增加综述的全面性和及时性，并促进现有证据的平衡。灰色文献的多样格式和受众可能会对系统性证据搜索构成重大挑战。然而，纳入灰色文献的好处可能远远超过搜索它所需的时间和资源成本，将其纳入系统性综述或证据综述非常重要。一个经过深思熟虑的灰色文献检索策略可能是一个系统性综述的宝贵组成部分。该叙述性综述提供了关于在系统性综述中纳入灰色文献的益处以及通过灰色文献进行检索的来源的指导。灰色文献来源中的证据搜索的一个说明性的例子，突出了这样的搜索系统评价的潜在贡献。灰色文献检索方法的好处和挑战进行了讨论，并提出建议。系统评价有助于分析和传播的证据，使用严格和透明的方法，以产生经验获得的答案，重点研究问题。识别与研究问题相关的所有证据是系统评价的一个重要组成部分，也是一个挑战。灰色文献，或未在商业出版物上发表的证据，可以对系统评价做出重要贡献。灰色文献可以包括学术论文，包括论文和学位论文，研究和委员会报告，政府报告，会议论文和正在进行的研究等。它可以提供商业出版文献中找不到的数据，为传播可能无法传播的无效或负面结果的研究提供了一个重要论坛。灰色文献可以减少发表偏倚，增加综述的全面性和及时性，并促进现有证据的平衡。灰色文献的多样化形式和受众可能会对系统性证据搜索构成重大挑战。然而，纳入灰色文献的好处可能远远超过搜索它所需的时间和资源成本，将其纳入系统综述或证据综述非常重要。一个经过深思熟虑的灰色文献检索策略可能是一个系统性综述的宝贵组成部分。该叙述性综述提供了关于在系统性综述中纳入灰色文献的益处的指导，以及通过灰色文献进行检索的来源。灰色文献来源中的证据搜索的一个说明性的例子，突出了这样的搜索系统评价的潜在贡献。灰色文献检索方法的好处和挑战进行了讨论，并提出建议。
Systematic reviews aid the analysis and dissemination of evidence, using rigorous and transparent methods to generate empirically attained answers to focused research questions. Identifying all evidence relevant to the research questions is an essential component, and challenge, of systematic reviews. Grey literature, or evidence not published in commercial publications, can make important contributions to a systematic review. Grey literature can include academic papers, including theses and dissertations, research and committee reports, government reports, conference papers, and ongoing research, among others. It may provide data not found within commercially published literature, providing an important forum for disseminating studies with null or negative results that might not otherwise be disseminated. Grey literature may thusly reduce publication bias, increase reviews' comprehensiveness and timeliness and foster a balanced picture of available evidence. Grey literature's diverse formats and audiences can present a significant challenge in a systematic search for evidence. However, the benefits of including grey literature may far outweigh the cost in time and resource needed to search for it, and it is important for it to be included in a systematic review or review of evidence. A carefully thought out grey literature search strategy may be an invaluable component of a systematic review. This narrative review provides guidance about the benefits of including grey literature in a systematic review, and sources for searching through grey literature. An illustrative example of a search for evidence within grey literature sources is presented to highlight the potential contributions of such a search to a systematic review. Benefits and challenges of grey literature search methods are discussed, and recommendations made.Systematic reviews aide the analysis and dissemination of evidence, using rigorous and transparent methods to generate empirically attained answers to focused research questions. Identifying all evidence relevant to the research questions is an essential component, and challenge, of systematic reviews. Gray literature, or evidence not published in commercial publications, can make important contributions to a systematic review. Gray literature can include academic papers, including theses and dissertations, research and committee reports, government reports, conference papers, and ongoing research, among others. It may provide data not found within commercially published literature, providing an important forum for disseminating studies with null or negative results that might not otherwise be disseminated. Gray literature may thusly reduce publication bias, increase reviews' comprehensiveness and timeliness, and foster a balanced picture of available evidence. Gray literature's diverse formats and audiences can present a significant challenge in a systematic search for evidence. However, the benefits of including gray literature may far outweigh the cost in time and resource needed to search for it, and it is important for it to be included in a systematic review or review of evidence. A carefully thought out gray literature search strategy may be an invaluable component of a systematic review. This narrative review provides guidance about the benefits of including gray literature in a systematic review, and sources for searching through gray literature. An illustrative example of a search for evidence within gray literature sources is presented to highlight the potential contributions of such a search to a systematic review. Benefits and challenges of gray literature search methods are discussed, and recommendations made.