A consumer's guide to meta-analysis.
A consumer's guide to meta-analysis.
复制标题
元分析消费者指南。
DOI:
10.1002/art.1790100309
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发表时间:
1997
期刊:
影响因子:
--
通讯作者:
LaValley,M
中科院分区:
文献类型:
--
作者:
LaValley,M
Meta-analysis, an analysis that statistically pools the results from previous studies into a single quantitative analysis, has been described by one proponent as providing the very highest level of evidence for treatment efficacy (1). This type of analysis has an extensive literature (2-6) and has become a commonly employed tool in medical research. It is often used to evaluate collections of clinical trials zyxwvutsrqponml (7, 8), but has also been used to pool epidemiologic studies zyxwvutsrqponmlkjih (9). The aim of this article is to provide a brief listing of the issues that should be considered in the construction of a solid meta-analysis. How these issues were addressed needs to be featured in the report from such a meta-analysis, and I will discuss what should be included in such a report. This is intended to help readers in critical evaluation of published meta-analyses, as well as provide guidelines on how to report a meta-analysis of one’s own. Brief explanations of the statistical issues involved in the combination of studies will be given, but readers who wish to perform their own meta-analyses should consult the source materials listed in the references for full explanations of the techniques, limitations, and interpretations of meta-analysis. The techniques used in meta-analysis were developed as systematic methods of combining the results of previously reported, and often contradictory, studies in an area in order to reach a synthesis. As such, metaanalysis is intended to provide a more objective and reproducible version of the traditional summary and review of a subject area by an expert in the field, with the expert’s experience and opinions replaced by im-