SRDR: Systematic Review Data Repository™


SRDR is a collaborative, Web-based repository of systematic review data. This resource serves as both an archive and a data extraction tool. The data can be shared worldwide among organizations and individuals producing systematic reviews, and a central database of systematic review data can be critiqued, updated, and augmented on an ongoing basis.

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Systematic reviews, which use quantitative techniques to synthesize the results of individual research projects, are an important step in the development of the evidence base for medicine and health care. The conduct of systematic reviews is costly and labor-intensive; it is important that these resources not be wasted. An open repository that enables the data from multiple projects to be preserved, compared, and reused promises substantial benefits: improved access to data by consumers of review evidence; greater transparency and reliability in the review process; and greater efficiency in the preparation and updating of systematic reviews.  


The Agency for Healthcare Research and Quality (AHRQ) sponsored the development of the Repository, which is currently maintained by the Brown University Evidence-based Practice Center.


Researchers, systematic reviewers, and users of systematic review, including clinicians, policymakers, and the general public


  • SRDR enables researchers to compile and archive a virtually unlimited quantity of extracted data, organized in projects, and data extraction forms within projects.
  • Study information can be downloaded automatically from PubMed® and other databases.
  • SRDR enables the creation of complex extraction forms that can accommodate any study design or research question.
  • A built-in messaging and communication system facilitates team coordination and communication with colleagues.
  • SRDR is committed to a policy of open access. All completed systematic review projects deposited in the SRDR archive are publicly available under the terms of a Creative Commons license.
  • Multiple stakeholders participate in developing, refining, and governing the SRDR.  Stakeholders include federal agencies, Evidence-based Practice Centers, systematic review groups, guideline developers, researchers, clinicians, and payers.


The SRDR Web site contains a user’s manual and instructional videos.

Page last reviewed August 2013
Page originally created August 2013
Internet Citation: SRDR: Systematic Review Data Repository™. Content last reviewed August 2013. Agency for Healthcare Research and Quality, Rockville, MD.
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