Cochrane Library

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 which summarize and interpret the results of medical research. The Cochrane Library aims to make the results of well-conducted controlled trials readily available and is a key resource in evidence-based medicine.

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

Access and use

The Cochrane Library is a subscription-based database, originally published 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). 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 to short plain-language summaries of selected articles.[1]

Cochrane Reviews appear to be relatively underused in the United States, presumably because public access is limited (the state of Wyoming is an exception, having paid for a licence to enable free access to Cochrane Reviews for all residents of Wyoming).[2]

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.[3]

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.[4][5] However, systematic reviewers need to search not only CENTRAL but also ICTRP and ClinicalTrials.gov to identify unpublished studies.[6]
  • 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.[7]

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.[7][8]

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

The Cochrane Database of Systematic Reviews
The Cochrane Database of Systematic Reviews
DisciplineMedicine
LanguageEnglish
Edited byDr Karla Soares-Weiser
Publication details
History1996–present
Publisher
Wiley
7.755 (2018)
Standard abbreviations
ISO 4Cochrane Database Syst. Rev.
Indexing
ISSN2044-4702 (print)
1469-493X (web)
LCCN99039924

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.

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.[9]

Abstracting and indexing

According to Journal Citation Reports, The Cochrane Database of Systematic Reviews has a 2016 impact factor of 6.264, ranking 14th out of 154 in the category "Medicine, General & Internal category".[10] Reviews are abstracted and indexed in the following bibliographic databases: Science Citation Index Expanded, Scopus, CINAHL, EMBASE, MEDLINE.[11]

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.[12] The Collaboration has a procedure for the event of serious error, an event which has only occurred once in its history.[13]

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 (ISSN 2044-4702), was published as an annual supplement.[14]

See also

References
  1. "Access options for the Cochrane Library". Cochrane Library. John Wiley & Sons, Inc. Retrieved 7 September 2015.
  2. 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.
  3. "Free access to Cochrane's COVID-19 pandemic resources guaranteed". Cochrane. The Cochrane Collaboration. 26 May 2020. Retrieved 28 January 2021.
  4. "Cochrane Controlled Register of Trials (CENTRAL)". www.cochranelibrary.com. Retrieved 2020-07-27.
  5. Dickersin K, Manheimer E, Wieland S, Robinson KA, Lefebvre C, McDonald S. Development of the Cochrane Collaboration’s Central Register of Controlled Clinical Trials. Eval Health Prof. 2002 Mar 1;25(1):38–64.
  6. Banno M, Tsujimoto Y, Kataoka Y. "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. PMID 32711471.
  7. "About the Cochrane Library | Cochrane Library". www.cochranelibrary.com. Retrieved 2019-01-21.
  8. "Epistemonikos: Database of the best Evidence-Based Health Care". www.epistemonikos.org. Retrieved 2019-01-21.
  9. "Cochrane Library Training". Retrieved 2018-12-10.
  10. "Cochrane Database of Systematic Reviews: 2016 Impact Factor". Cochrane Library.
  11. "Cochrane Library". MIAR: Information Matrix for the Analysis of Journals. University of Barcelona. Retrieved 2018-05-31.
  12. The Cochrane Collaboration. https://www.cochranelibrary.com/cdsr/comments-submission (accessed 10 December 2018)
  13. "Process in the event of serious errors in published Cochrane Reviews". community.cochrane.org. Retrieved 2018-12-11.
  14. "Cochrane Database of Systematic Reviews: Supplements | Cochrane Library". www.cochranelibrary.com. Retrieved 2018-12-11.
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