Visual display of reported impacts is a valuable aid to both reviewers and readers of systematic reviews. Forest plots are routinely prepared to report standardised effect sizes, but where standardised effect sizes are not available for all included studies a forest plot may misrepresent the available evidence. Tabulated data summaries to accompany the narrative synthesis can be lengthy and inaccessible. Moreover, the link between the data and the synthesis conclusions may be opaque.

中文翻译：

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效果方向图：跨多个结果域的非标准化效果的视觉显示。

报告影响的可视化显示对系统评价的评价者和读者都是有价值的帮助。森林图通常用于报告标准化效应量，但在并非所有纳入研究的标准化效应量都可用的情况下，森林图可能会歪曲现有证据。伴随叙述合成的表格数据摘要可能很长且无法访问。此外，数据和综合结论之间的联系可能是不透明的。