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Logo of mlabJournal informationSubscribeSubmissions on the Publisher web siteCurrent issue of BMLA in PMCAlso see JMLA journal in PMC
Bull Med Libr Assoc. 1992 July; 80(3): 219–222.
PMCID: PMC225660

Meta-analysis: a tool for medical and scientific discoveries.


Medicine has made increasing use of meta-analysis, largely as a quantitative procedure for combining results of clinical trials. Meta-analysis begins with a comprehensive review of the literature. The next step is a systematic analysis of the quality and content of each study. Finally, results are combined statistically and conclusions are drawn from this new overview of the data. This paper presents a brief historical perspective on the use of meta-analysis in medicine with emphasis on the medical library. The authors conclude that in the future, medical librarians will play a significant role in the application of this useful technique.

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