![]() Another key difference is the goal of each type of review.Meta-analysis is a statistical method used to synthesize the results of multiple studies on a specific research question or topic. Literature reviews provide a summary of the existing literature on a specific topic without a specific methodology, whereas systematic reviews follow a standardized methodology to identify, evaluate, and synthesize all available evidence on a specific research question or topic.The main difference between literature review, systematic review, and meta-analysis is the methodology used to identify, evaluate, and synthesize the available evidence.Meta-analysis is particularly useful when there are multiple studies on a specific research question or topic with varying effect sizes, or when the sample sizes of individual studies are too small to provide a precise estimate of the effect size. The primary aim of a meta-analysis is to provide a more precise estimate of the effect size of an intervention or exposure than any individual study can provide.The methodology of a meta-analysis involves identifying relevant studies through a comprehensive search strategy, screening and selecting studies based on pre-determined inclusion and exclusion criteria, extracting data from the included studies, and analysing the data using statistical methods to calculate an overall effect size.It is a quantitative analysis that combines data from multiple studies to provide an overall estimate of the effect size of an intervention or exposure. Systematic reviews are particularly useful when there is a large amount of existing literature on a topic, or when there is conflicting evidence in the literature.Ī meta-analysis is a statistical method used to synthesize the results of multiple studies on a specific research question or topic. The primary aim of a systematic review is to provide a summary of the available evidence on a specific topic, with the goal of answering a specific research question. ![]()
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