Systematic reviews with meta-analyses are powerful instruments to synthesize research. If done correctly, they may constitute the highest level of evidence by combining several individual studies. As high-quality evidence is scarce in the field of complementary medicine, meta-analyses of randomized trials may shed new light on both efficacy and safety, but they must be properly conducted. In this commentary to a recently published paper we elaborate on methodological pitfalls in meta-analysis that every researcher should avoid to gain true high-quality evidence.

中文翻译：

---

荟萃分析中的陷阱。

带有荟萃分析的系统评价是综合研究的有力工具。如果做得正确，它们可能会通过结合几项单独的研究来构成最高级别的证据。由于补充医学领域缺乏高质量的证据，随机试验的荟萃分析可能会为疗效和安全性提供新的启示，但必须正确进行。在对最近发表的一篇论文的评论中，我们详细阐述了元分析中的方法论缺陷，每个研究人员都应该避免这些缺陷以获得真正的高质量证据。