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Principles of MetaanalysisPAUL G. SHEKELLE and SALLY C. MORTON ABSTRACT. Metaanalysis is a relatively new tool to help make evidence based decisions. This technique involves the systematic examination of available evidence on a given clinical topic, and the summary of that evidence using statistical techniques that pool data from multiple studies to yield a single result. We briefly discuss the principal steps in a metaanalysis: identifying all the studies; assessing the studies for quality; organizing the studies into subgroups; and summarizing the results. (J Rheumatol 2000;27:251–3) Key Indexing Terms:
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