Formed as the Evidence Tables Working Group in 2005, the group first defined what an evidence table is , then developed templates for summarising four study designs (see templates tab above), and published a paper in the BMJ Quality & Safety .
In 2011, the ETWG also launched a beta version of the G-I-N Data Extraction Resource (GINDER), an online repository for evidence tables based on the intervention and diagnostic templates. However, in 2013 it was decided that development should be stopped given the cost and resources needed to complete, maintain and promote the use of GINDER. In addition, there are other initiatives making good progress in developing systematic review data repositories (e.g., SRDR) and systematic review tools (e.g., the Cochrane Author Support Tool (based on Covidence), EPPI-Reviewer, DistillerSR, Doctor Evidence, and the Guideline Development Tool).
In 2014, at the Melbourne conference, members of the working group discussed the future direction of the group and decided that the original aim had been achieved. There is now a large number of technical advances, with a number of different platforms supporting evidence table production. The group felt that there was a role in supporting G-I-N members to make best use of these tools and help in the sharing of evidence across the various tools. This was seen as a natural progression and still addresses the original remit of the group.
Aims and Objectives
The aim of the working group is to aid G-I-N members in sharing evidence from the various electronic tools and also providing a forum for members to discuss the best way to use the various tools. These may include the use of tools for:
- Data abstraction
- Data synthesis
- Data presentation
In addition it is hoped that the group will provide a focus for discussing improvements to the tools to make them more useful to G-I-N members and to aid the sharing of evidence between the various tools, and provide a focus for discussions with tool developers and the guideline development community.
 "Evidence tables are methodological and outcome summaries that present data from a number of related studies. They answer a well-defined question in a consistent format, aim to demonstrate overall trends in the evidence and enable the process of making recommendations."
 Mlika-Cabanne N, Harbour R, de Beer H, Laurence M, Cook R, Twaddle S;
Guidelines International Network (GIN) Working Group on Evidence Tables. Sharing
hard labour: developing a standard template for data summaries in guideline
development. BMJ Qual Saf. 2011 Feb;20(2):141-5. doi: 10.1136/bmjqs.2010.040923.
Epub 2011 Jan 5. Review. PubMed PMID: 21209129.