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Cochrane Database of Systematic Reviews
The Cochrane Database of Systematic Reviews ( CDSR) is the leading database for systematic reviews in health care. The CDSRincludes Cochrane reviews (systematic reviews) and protocols for Cochrane reviews as well as editorials and supplements.
The CDSR (ISSN 1469-493X) is owned and produced by Cochrane, a global, independent network of researchers, professionals, patients, carers, and people interested in health.
Aims and scope | Publication | Editorial structure | Editorial and publication policies | Impact | Translations | Indexing and archiving
The CDSR covers any topic relevant to health care, including health services.
Article types
Cochrane reviews
A Cochrane review is a systematic review that attempts to identify, appraise and synthesize evidence to answer a specific research question. Researchers conducting systematic reviews use explicit, systematic methods aimed at minimizing bias, to produce reliable findings to inform decision-making. We encourage authors of Cochrane reviews to update their published reviews to reflect the findings of new evidence when it becomes available. Cochrane reviews are valuable sources of information for those receiving and providing care, as well as for decision-makers and researchers.
Protocols
Cochrane researchers use protocols to describe the proposed approach for a systematic review. Each protocol contains information that defines the health problem and the intervention under investigation, how benefits and harms will be measured, and the type of appropriate study design. The protocol also outlines the process for identifying, assessing, and summarizing studies in the review. By making this information available the protocol is a public record of how the review authors intend to answer their research question.
Editorials
Editorials may be linked to Cochrane reviews of interest, or they may explore broader initiatives or topics. They aim to stimulate discussion around the development of evidence synthesis and to promote good decision-making in clinical care and health policy. Editorials are up to 1000 words and may include figures and tables. They should be supported by references, and should not present original research data. Editorials are commissioned by the Editor in Chief, or proposals from authors are also welcome. If you are interested in writing an Editorial, please submit your proposal to [email protected] for consideration.
Supplements
Since 2009, the abstracts from Cochrane Colloquia and other conferences have been published as CDSR supplements .
From 2010 to 2016, Cochrane Methods (ISSN: 2044-4702), the official annual newsletter for methodological issues within Cochrane, was published as an annual CDSR supplement.
The CDSR has 12 issues per year. Each issue is built throughout the month, with new and updated articles published when ready. The first issue of the CDSR was published in April 1995. Until the end of 2009, the CDSR had a quarterly publication schedule, with 4 issues a year. From January 2010, the CDSR moved to a monthly publication schedule. An issue opens from the first day of the calendar month and closes on the last day of the calendar month.
The CDSR is part of the Cochrane Library, which is published by Wiley and is available via national provision, subscription, pay-per-view, and one-click free access for qualifying countries. See the Access page for more information.
The CDSR does not publish any unpaid or paid-for advertising. See Cochrane’s advertising policy .
For details about the Editor in Chief and Editorial Board see About the Cochrane Library .
Editorial and publication policies
For all policies relation to the CDSR, see Cochrane Database of Systematic Reviews : editorial policies
For policies and processes relating to Cochrane Clinical Answers, see About Cochrane Clinical Answers .
The 2024 Journal Impact Factor for the CDSR is 9.4. Clarivate Analytics publishes the Journal Impact Factors of all journals indexed in the InCites Journal Citation Reports .
At Cochrane, we recognise that research impact comes in many forms. No single metric is intrinsically more valid or important than any other, as different people have different priorities and definitions of impact. Instead of focusing on any individual metric, we present a broad spectrum of indicators and leave you to judge which are most relevant and important to you, as a user of the Cochrane Library. For more on how we measure the impact of Cochrane content, see About Cochrane Database of Systematic Reviews impact metrics .
The Cochrane Library is available as a Spanish language version .
Additionally, the abstracts or plain language summaries of many Cochrane reviews have been translated into one or more of 13 languages, and these are available in the Cochrane Library.
For more information, see Cochrane evidence in different languages.
Indexing
Cochrane reviews and Editorials are indexed in PubMed and other databases, including Web of Science and Scopus .
Repositories, including PubMed Central
From 1 February 2013 onwards, authors have had the right to post the published version of their Cochrane review or protocol for a Cochrane review in a repository, 12 months after publication. From September 2016, Cochrane reviews have been automatically submitted into PubMedCentral on behalf of authors.
Cochrane Interactive Learning Learn how to conduct Cochrane reviews with Cochrane Interactive Learning
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