FAQ | Quality control
How often does the EuroQol Research Foundation publish updates to existing products?
Minor and major changes, when they occur, will be published immediately.
Do these changes affect my current study?
No, your current study is not affected. The content of our products has not changed. You can use the existing EQ-5D products with confidence.
How can I check if I have the latest version?
A list of all products and their version number is available on our website. If you have any additional questions, please contact the EuroQol Office.
Where can I see what changes have been made in the latest update?
Please contact the EuroQol Office for the release notes from the update. These describe the changes and the reasons for them.
How often are new products released, such as a new language version?
New products are released as soon as they are available for use.
Can I receive a Translation Certificate after completion of an EQ-5D translation project or revision of an EQ-5D product?
Translation certificates for Paper Self-Complete versions are applicable for all corresponding modes of administration and can be provided upon request. Translation certificates only confirm and reflect the most extensive translation procedure and will not be revised whenever minor or major modifications are being made, which in itself does not change the procedure.