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Article
March 18, 1988

Meta-analysisA Quantitative Approach to Research Integration

Author Affiliations

From the Center for Environmental Health and Injury Control, Centers for Disease Control, Atlanta.

From the Center for Environmental Health and Injury Control, Centers for Disease Control, Atlanta.

JAMA. 1988;259(11):1685-1689. doi:10.1001/jama.1988.03720110047033
Abstract

Meta-analysis is being used with increasing frequency in clinical medicine as an attempt to improve on traditional methods of narrative review by systematically aggregating information and quantifying its impact. Combining data from several studies using meta-analysis can increase statistical power, provide insight into the nature of relationships among variables, and increase generalizability of results more rigorously than less quantitative review methods. Like all review methods, meta-analysis can be limited by sampling bias, inadequate data, and biased outcome interpretation. Still, the advantages noted above make meta-analysis a methodology that warrants testing and empirical evaluation.

(JAMA 1988;259:1685-1689)

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