Evidence Synthesis

Extraction of data

• Extract relevant data from each study. This includes information such as study design, participant characteristics, interventions, outcomes, and results.
• Develop a systematic method for data extraction regardless of whether you intend to do a meta-analysis.
• Researchers can use forms and tables to collect the data they will later compile or examine.
• Which extraction tools are ideal for a project will depend on how much and what kind of data is collected, as well as how many people will be working on the project to extract it.
• For smaller or simpler projects, spreadsheet programs like Google Spreadsheets or Excel might be the ideal choice, while platforms for systematic review software might offer more reliable assistance for larger or more complex data.

Excel Data Extraction Tools 

The most fundamental tool for managing the systematic review process's screening and data extraction phases is Excel. Spreadsheets and workbooks with unique designs can be created for the review procedure. The PIECES methodology, created by Margaret Foster at Texas A&M, is a more sophisticated method of using Excel for this purpose. You can download the PIECES workbook.


Covidence
In a systematic review effort, Covidence is a software platform that manages independent title/abstract screening, full text screening, data extraction, and risk of bias evaluation. Find out more about how you may export your extracted data and modify the extraction tables with Covidence.


RevMan
Cochrane review management is facilitated by the free program RevMan. View the RevMan Web Quickstart Guide or the RevMan Knowledge Base for an overview of RevMan, including how it can be used to extract and analyse data.



SRDR
A web-based platform called SRDR (Systematic Review Data Repository) is used to maintain and extract data for systematic reviews and meta-analyses. Additionally, the data from systematic reviews are archived and searchable. Go to the help page to learn more.



DistillerSR
DistillerSR is a Covidence-like software for managing systematic reviews. Reviewers can use it as a reference to create forms tailored to their projects, extract data, and analyse it.



JBI Sumari
The Joanna Briggs Institute System for the United Management, Assessment, and Review of Information, or JBI Sumari, is a platform for systematic reviews designed for use in disciplines like the social sciences, humanities, and health. It helps in data extraction and synthesis, among other review project processes. View their short introductions to data extraction and analysis for more information.