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A systematic review is a scholarly synthesis of the evidence on a clearly presented topic using critical methods to identify, define and assess research on the topic. [1] A systematic review extracts and interprets data from published studies on the topic (in the scientific literature), then analyzes, describes, critically appraises and summarizes interpretations into a refined evidence-based ...
The term literature review without further specification still refers (even now, by convention) to a narrative review. The main types of narrative reviews are evaluative, exploratory, and instrumental. [2] A fourth type of review, the systematic review, also reviews literature (the scientific literature), but because the term literature review ...
The PRISMA flow diagram, depicting the flow of information through the different phases of a systematic review. PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) is an evidence-based minimum set of items aimed at helping scientific authors to report a wide array of systematic reviews and meta-analyses, primarily used to assess the benefits and harms of a health care ...
Review articles come in the form of literature reviews and, more specifically, systematic reviews; both are a form of secondary literature. [21] Literature reviews provide a summary of what the authors believe are the best and most relevant prior publications.
In medical research, an umbrella review is a review of systematic reviews or meta-analyses. [1] [2] [3] They may also be called overviews of reviews, reviews of reviews, summaries of systematic reviews, or syntheses of reviews. [1] Umbrella reviews are among the highest levels of evidence currently available in medicine. [2]
Rapid reviews are a systematic survey of literature on a topic or question of interest. Compared to a systematic review of literature, in a rapid review, several design decisions and practical steps are undertaken to reduce the time it takes to identify, aggregate and answer the question of interest.
A recent systematic review of how people were involved in systematic reviews aimed to document the evidence-base relating to stakeholder involvement in systematic reviews and to use this evidence to describe how stakeholders have been involved in systematic reviews. [43] Thirty per cent involved patients and/or carers.
The literature review identifies flaws or holes in previous research which provides justification for the study. Often, a literature review is conducted in a given subject area before a research question is identified. A gap in the current literature, as identified by a researcher, then engenders a research question.