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Meta-analysis in cancer epidemiology
1Division of Epidemiology, Medical College of Wisconsin, Milwaukee 53226.
Environmental Health Perspectives
|November 1, 1994
Summary
Meta-analysis, a statistical method, is increasingly used in epidemiology to synthesize research findings. This approach enhances rigor and objectivity, aiding in the interpretation of complex epidemiological data, especially for cancer risk factors.
Area of Science:
- Epidemiology
- Biostatistics
Background:
- Meta-analysis use in epidemiology has grown significantly in recent years.
- While accepted in clinical trials, its application in epidemiology faces some controversy.
- Viewing meta-analysis as an evolution of review articles may increase its acceptance.
Purpose of the Study:
- To explore the increasing use and acceptance of meta-analysis in epidemiology.
- To outline methods for incorporating study quality and design differences into meta-analysis.
- To discuss tools for assessing publication bias and combining dose-response data.
Main Methods:
- Describing available tools for considering study differences with literature examples.
- Detailing the utilization of various methods in published meta-analyses.
- Discussing techniques for evaluating publication bias and dose-response data.
Main Results:
- Meta-analysis offers a rigorous, objective, and quantitative approach to synthesizing epidemiological studies.
- Specific tools and methods exist to address heterogeneity and bias in meta-analyses.
- The application of meta-analysis is crucial for interpreting extensive cancer epidemiology research.
Conclusions:
- Meta-analysis, when incorporating quality and design considerations, is a valuable tool for epidemiological research.
- It provides a quantitative and objective means to assess evidence, particularly for risk and protective factors.
- Effective use of meta-analysis is essential for advancing our understanding in cancer epidemiology.