Cochrane Library

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Cochrane Library
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Cochrane Library logo
ProducerCochrane
Access
ProvidersJohn Wiley & Sons
CostSubscription with limited preview
Coverage
DisciplinesHealthcare
Format coverageReviews
Geospatial coverageWorldwide
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Links
Websitewww.cochranelibrary.com

The Cochrane Library (named after Archie Cochrane) is a collection of databases in medicine and other healthcare specialties provided by Cochrane and other organizations. At its core is the collection of Cochrane Reviews, a database of systematic reviews and meta-analyses that summarize and interpret the results of medical research. The Cochrane Library aims to make the results of well-conducted clinical trials readily available and is a key resource in evidence-based medicine.

Access and use

The Cochrane Library is a subscription-based database, published initially by Update Software and now published by John Wiley & Sons, Ltd. as part of Wiley Online Library. In many countries, including parts of Canada, the United Kingdom, Ireland, the Scandinavian countries, New Zealand, Australia, India, South Africa, and Poland, it has been made available free to all residents by "national provision" (typically a government or Department of Health pays for the license).[1] Other countries negotiate for a national license, which similarly provides free Cochrane access to all residents; in Switzerland, the national license is funded by the Swiss Academy of Medical Sciences [de], the Consortium of Swiss Academic Libraries, university hospitals, and the Federal Office of Public Health.[2][3] There are also arrangements for free access in much of Latin America and in "low-income countries", typically via HINARI. All countries have free access to two-page abstracts of all Cochrane Reviews and short plain-language summaries of selected articles.[1]

Cochrane Reviews appear to be relatively underused in the United States for two reasons: 1) Public access to the Cochrane Library in the United States is limited (the state of Wyoming is an exception, having paid for a license to enable free access to Cochrane Reviews for all residents of Wyoming).[4] 2) The government-funded U.S. National Library of Medicine maintains an alternative database MEDLINE, which is free of charge to everyone and has significantly more extensive coverage than Cochrane.

From 26 March to 26 May 2020, the Cochrane Library provided temporary unrestricted access to everyone in every country in response to the COVID-19 pandemic.[5]

Contents

The Cochrane Library consists of the following databases after significant changes in 2018:

  • The Cochrane Database of Systematic Reviews (Cochrane Reviews). Contains all the peer-reviewed systematic reviews and protocols (Cochrane Protocols) prepared by the Cochrane Review Groups.
  • The Cochrane Central Register of Controlled Trials (CENTRAL). CENTRAL is a database that contains details of articles of controlled trials and other studies of healthcare interventions from bibliographic databases (majorly MEDLINE and EMBASE), and other published and unpublished sources that are difficult to access, including trials from the trial registries such as International Clinical Trials Registry Platform (ICTRP) and ClinicalTrials.gov.[6][7] However, systematic reviewers need to search not only CENTRAL but also ICTRP and ClinicalTrials.gov to identify unpublished studies.[8]
  • Cochrane Clinical Answers. These evidence summaries on a variety of questions of interest to healthcare professionals have a user-friendly presentation with graphics and high-level conclusions of the research evidence based on Cochrane Reviews.[9]

The Cochrane Library now also features results from Special Collections and Editorials as well as an option to link out to other reviews compiled by Epistemonikos.[9][10]

The Cochrane Database of Systematic Reviews, Cochrane Protocols, and CENTRAL are produced by Cochrane.

The Cochrane Database of Systematic Reviews

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The Cochrane Database of Systematic Reviews
DisciplineMedicine
LanguageEnglish
Edited byDr Karla Soares-Weiser
Publication details
History1996–present
Publisher
Wiley
11.874 (2021)
Standard abbreviations
Template:Infobox journal/Abbreviation search
ISO 4Cochrane Database Syst. Rev.
IndexingTemplate:Infobox journal/Indexing search
ISSN2044-4702 (print)
1469-493X (web)
LCCN99039924

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The Cochrane reviews take the format of full-length methodological studies. Cochrane researchers will perform searches of medical and health databases including MEDLINE/PubMed, EMBASE, PsycINFO, CINAHL, etc.; a continually updated database of trials called the Cochrane Central Register of Controlled Trials (CENTRAL); hand searching, where researchers look through entire libraries of scientific journals by hand and; reference checking of obtained articles in order to identify additional studies that are relevant to the question they are attempting to answer. The quality of each study is carefully assessed using predefined criteria and evidence of weak methodology or the possibility that a study may have been affected by bias is reported in the review.[citation needed]

Cochrane researchers then apply statistical analysis to compare the data of the trials. This creates a review of studies, or systematic review, giving a comprehensive view of the efficacy of a particular medical intervention. Finished reviews are available as a full report with diagrams, in condensed form or as a plain language summary, in order to provide for every reader of the review.[11]

Abstracting and indexing

According to Journal Citation Reports, The Cochrane Database of Systematic Reviews has a 2021 impact factor of 11.874, ranking 20th of 172 journals in the Medicine, General and Internal category, down from 11th in 2020 (167 journals).[12] Reviews are abstracted and indexed in the following bibliographic databases: Science Citation Index Expanded, Scopus, CINAHL, EMBASE, MEDLINE.[13]

Academic comments

The Cochrane Library Feedback tool allows users to provide comments on and feedback of Cochrane Reviews and Protocols in The Cochrane Library. If accepted, the feedback will be published in a scrolling list of comments in reverse chronological order, with the most recent submission at the top of the page.[14] The Collaboration has a procedure for the event of serious error, an event which has only occurred once in its history.[15]

Supplements

Annual colloquia have been conducted by Cochrane since 1993. From 1994 onwards, Cochrane has maintained a database of posters and presentations of past colloquia. From 2009 onwards, Cochrane published the abstracts of those colloquia as supplements to the Cochrane Database of Systematic Reviews. From 2010 to 2016, an annual newsletter related to Cochrane methodology called Cochrane Methods (Script error: No such module "CS1 identifiers".), was published as an annual supplement.[16]

See also

References

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  1. ^ a b Page Module:Citation/CS1/styles.css has no content."Access options for the Cochrane Library". Cochrane Library. John Wiley & Sons, Inc. Retrieved 7 September 2015.
  2. ^ Page Module:Citation/CS1/styles.css has no content."Cochrane Library". SAMW. 2026. Retrieved 31 May 2026.
  3. ^ Page Module:Citation/CS1/styles.css has no content."Contents available". Consortium of Swiss Academic Libraries. Retrieved 31 May 2026.
  4. ^ Page Module:Citation/CS1/styles.css has no content.Grimes DA, Hou MY, Lopez LM, Nanda K (February 2008). "Do clinical experts rely on the Cochrane library?". Obstet Gynecol. 111 (2 Pt 1): 420–2. doi:10.1097/01.AOG.0000300558.51373.ae. PMID 18238981. S2CID 205384002.
  5. ^ Page Module:Citation/CS1/styles.css has no content."Free access to Cochrane's COVID-19 pandemic resources guaranteed". Cochrane. The Cochrane Collaboration. 26 May 2020. Retrieved 28 January 2021.
  6. ^ Page Module:Citation/CS1/styles.css has no content."Cochrane Controlled Register of Trials (CENTRAL)". cochranelibrary.com. Retrieved 27 July 2020.
  7. ^ Page Module:Citation/CS1/styles.css has no content.Dickersin, Kay; Manheimer, Eric; Wieland, Susan; Robinson, Karen A.; Lefebvre, Carol; McDonald, Steve; Central Development Group (March 2022). "Development of the Cochrane Collaboration's Central Register of Controlled Clinical Trials". Evaluation & the Health Professions. 25 (1): 38–64. doi:10.1177/016327870202500104. ISSN 0163-2787. PMID 11868444. S2CID 22331214.
  8. ^ Page Module:Citation/CS1/styles.css has no content.Banno M, Tsujimoto Y, Kataoka Y (2020). "Using the Cochrane Central Register of Controlled Trials to identify clinical trial registration is insufficient: a cross-sectional study". BMC Med Res Methodol. 20 (1): 200. doi:10.1186/s12874-020-01083-y. PMC 7382846. PMID 32711471.
  9. ^ a b Page Module:Citation/CS1/styles.css has no content."About the Cochrane Library | Cochrane Library". cochranelibrary.com. Retrieved 21 January 2019.
  10. ^ Page Module:Citation/CS1/styles.css has no content."Epistemonikos: Database of the best Evidence-Based Health Care". epistemonikos.org. Retrieved 21 January 2019.
  11. ^ Page Module:Citation/CS1/styles.css has no content."Cochrane Library Training". Retrieved 10 December 2018.
  12. ^ Page Module:Citation/CS1/styles.css has no content."Cochrane Database of Systematic Reviews: 2021 Impact Factor". Cochrane Library. Retrieved 22 February 2023.
  13. ^ Template:Cite MIAR
  14. ^ The Cochrane Collaboration. https://www.cochranelibrary.com/cdsr/comments-submission (accessed 10 December 2018)
  15. ^ Page Module:Citation/CS1/styles.css has no content."Process in the event of serious errors in published Cochrane Reviews". community.cochrane.org. Retrieved 11 December 2018.
  16. ^ Page Module:Citation/CS1/styles.css has no content."Cochrane Database of Systematic Reviews: Supplements | Cochrane Library". cochranelibrary.com. Retrieved 11 December 2018.
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