Jump to navigation. Cochrane Systematic Reviews provide reliable, evidence-based information on health issues. A systematic review is the result of a rigorous scientific process consisting of several well-defined steps, including a systematic literature search, an evaluation of the quality of each included study and a synthesis, quantified or narrative, of the results obtained. The findings summarize the evidence on the efficacy of a treatment, the risk of adverse events or the accuracy of a diagnostic test, for example. However, sometimes the authors have to acknowledge that there is a lack of rigorous scientific studies. What information can be found in a Cochrane Systematic Review?
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Systematic reviews aid the analysis and dissemination of evidence, using rigorous and transparent methods to generate empirically attained answers to focused research questions. Identifying all evidence relevant to the research questions is an essential component, and challenge, of systematic reviews. Grey literature, or evidence not published in commercial publications, can make important contributions to a systematic review. Grey literature can include academic papers, including theses and dissertations, research and committee reports, government reports, conference papers, and ongoing research, among others.
Jump to navigation. Systematic reviews are most useful when they are regularly updated. It is not clear, however, when updating should be done and which strategies and methods are most cost-effectiveThis review identified strategies and methods used to update systematic reviews. Fifteen articles that documented 4 strategies and 2 statistical methods for updating systematic reviews were found.
Jump to navigation. Top menu Cochrane. How to withdraw mechanical ventilation: a systematic review of the literature Alternate title:. Secondary title:. Short title:.