In systematic reviews that lack data amenable to meta-analysis, alternative synthesis methods are commonly used, but these methods are rarely reported. This lack of transparency in the methods can cast doubt on the validity of the review findings. The Synthesis Without Meta-analysis (SWiM) guideline has been developed to guide clear reporting in reviews of interventions in which alternative synthesis methods to meta-analysis of effect estimates are used. This article describes the development of the SWiM guideline for the synthesis of quantitative data of intervention effects and presents the nine SWiM reporting items with accompanying explanations and examples. ### Summary points Decision makers consider systematic reviews to be an essential source of evidence.1 Complete and transparent reporting of the methods and results of reviews allows users to assess the validity of review findings. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA; http://www.prisma-statement.org/) statement, consisting of a 27 item checklist, was developed to facilitate improved reporting of systematic reviews.2 Extensions are …

中文翻译：

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系统评价中没有荟萃分析的综合（SWiM）：报告指南。

在缺乏可进行荟萃分析的数据的系统评价中，通常使用替代综合方法，但这些方法很少被报道。方法缺乏透明度可能会让人怀疑审查结果的有效性。制定了无 Meta 分析综合 (SWiM) 指南，以指导在干预审查中明确报告，其中使用替代综合方法来对效果估计进行荟萃分析。本文描述了 SWiM 指南的制定，用于综合干预效果的定量数据，并介绍了九个 SWiM 报告项目，并附有解释和示例。### 总结要点 决策者认为系统评价是重要的证据来源。1 完整和透明的审查方法和结果报告允许用户评估审查结果的有效性。系统评价和元分析的首选报告项目 (PRISMA; http://www.prisma-statement.org/) 声明由 27 个项目清单组成，旨在促进改进系统评价的报告。2 扩展是……