Why am I using an older version of Extraction 1? 

Covidence is making updates and improvements to Extraction 1. If you started extracting data in Extraction 1 after July 4th, 2023, you’ll be using the new version of Extraction 1. You can find support for the new version here. 

 

Start extracting data for a study using the older version of Extraction 1

You can start data extraction for any study in your included list by clicking on the ‘Start’ link under the ‘Data extraction’ section of the study. 

 

 

When you begin data extraction, the first extraction form to be opened in a review will become the "Review template". The current version of the template is applied to studies you subsequently open/start. Unfortunately, changes  made to the “Review template” do not retroactively apply to extraction forms which have already been opened/created. 

 

 

The center pane shows the general areas of data extraction and allows for quick navigation between each. 

 

 

The reviewer assigned as the first reviewer can make edits to the data extraction form, including: intervention characteristics, interventions, baseline characteristics, and outcomes. 

The first reviewer can be changed at any time by clicking the "Manage reviewers" function beneath each study, which will open the menu shown below. Use the drop-down menus to assign reviewers, then click "save". The system will ask if you want to keep work already done or start over; to keep the DE work done by the first reviewer, just be sure to select the 'Transfer XX’s form' option.

 

Here is a short video that runs through how to create your data extraction forms. 

 

 

How to setup a Quality Assessment form using the older version of Extraction 1

 

You can start a quality assessment for any study in your included list by clicking on the ‘Start’ link under the Quality Assessment section of the study.

 

You will then be asked to choose the Cochrane RoB1 template with the standard Cochrane Risk of Bias domains or custom template to be able to define a custom set of domains. 

 

 

 

The Cochrane Risk of Bias domains will include; sequence generation, allocation concealment, blinding of participants and personnel, blinding of outcome assessment, incomplete outcome data, selective outcome reporting and ‘other sources of bias’.

To edit or remove a domain click the "Edit domains" button from the RoB summary view and select the domain you wish to edit or delete.

 

 

If you choose the ‘Custom template’ option simply click the "Add domain" button from the RoB summary view to add a domain. You can give your domain a name, description and specify whether the risk of bias can apply to specific outcome groups. In the case that the domain can be outcome group specific you will be able to make judgements against each outcome group independently.

 

 

 

The domains that you define for the first study you assess in a review will be used as the “Review template” for all the other studies in your review.  So, each subsequent assessment will have the same list of domains as the first assessment. You can still customize each study independently. Please note that changes later made to the 'Review template' do not retroactively apply to extraction forms which have already been opened/created. 

You can watch a short video on setting up your Quality Assessment template, as well as how template management works in Covidence.