Introduction of meta-analysis: What, why and who
Meta-analysis is a method of review that summarises the results of previous research of the same particular issue in a systematic and quantitative way. A meta-analysis that properly combines results from different studies will average out differences caused by random variation and produce a more pre...
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Main Authors: | , , , |
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Format: | Article |
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Faculty of Medicine, University of Malaya
2000
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Subjects: | |
Online Access: | http://eprints.um.edu.my/24523/ https://jummec.um.edu.my/article/view/4467 |
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Institution: | Universiti Malaya |
Summary: | Meta-analysis is a method of review that summarises the results of previous research of the same particular issue in a systematic and quantitative way. A meta-analysis that properly combines results from different studies will average out differences caused by random variation and produce a more precise estimate of the true effect. It may also detect and investigate heterogeneity among studies thus providing a deeper understanding of clinical dilemmas and guidance on resolving them.in this way a meta-analysis will be a better guide to practice than an individual study. Meta-analysis also has its limitations as it is largely dependent on the quality of published data and requires careful planning and execution of a valid protocol, together with cautious interpretation of the results. |
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