![]() These examples are programmatically compiled from various online sources to illustrate current usage of the word 'meta-analysis.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Tools to help with the process of critically appraising articles in many types of research, including systematic reviews. This will often be a binary question, where an effect is either shown or not shown across a number of studies. 2023 Two meta-analyses, though, find that people lose a bit more weight on the Mediterranean diet than low-carb. 2023 In this context, we may be forced to rely more and more heavily on meta-analyses (perhaps conducted by AI) but with less and less ability to factor expert judgment and methodological credibility into their evaluation. 2023 One large-scale study called a meta-analysis concluded that increasing physical activity by way of step counts was effective for attaining modest weight loss. Stephanie Pappas, Scientific American, 30 Sep. 2023 Women tend to remember a few more dreams than men, on average, according to a 2008 meta-analysis of multiple dream studies. 2023 And having healthy relationships is integral to our physical well-being one meta-analysis showed that people with more supportive social relationships have a 50% lower risk of premature death. It pools numerical analyses from studies. Instead of basing conclusions on a single study, a meta-analysis looks at numerous studies for the answer. 2023 The news comes from a new meta-analysis published in the Journal of Epidemiology & Community Health, in which researchers compared adverse reactions to flu vaccines in males versus females. A meta-analysis is a type of systematic review. We describe what meta-analysis is, what heterogeneity is, and how it affects meta-analysis, effect size, the modeling techniques of meta-analysis, and strengths and weaknesses of meta-analysis. Christina Jewett, New York Times, 10 Oct. ing meta-analysis as a statistical tool using both published articles and explanations of components of the technique. ![]() Analysts use well recognised, systematic methods. 2 Meta-analysis does not simply pool data from smaller studies to achieve a larger sample size. 2023 One recent meta-analysis reported higher heart attack risks in e-cigarette users than in those who did not vape or smoke anything. Meta-analysis is a research process used to systematically synthesise or merge the findings of single, independent studies, using statistical methods to calculate an overall or ‘absolute’ effect. Recent Examples on the Web According to a wide-reaching meta-analysis published in 2021, Black people diagnosed with Covid were more likely to be admitted to intensive care units.
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