Notice on Changes to Proxy2 Availability

Please be informed that, effective 1 August 2025, the EuroQol Office will discontinue offering the Proxy2 as a separate mode of administration (MOA).

The Proxy2 is designed for use by a caregiver (the proxy) who knows the respondent well and who rates how they believe the respondent would rate their own health, if the respondent were able to communicate. In contrast, the Proxy1 is intended for a caregiver who provides their own assessment of the respondent’s health. The Proxy1 will remain available.

Alternative to Proxy2

Since the wording of Proxy1 is largely similar to Proxy2—differing mainly in the instructions—it will be permissible to adapt the Proxy1 by modifying its instructions to reflect the perspective of the respondent rather than the proxy’s own opinion. This modification is allowed upon signing a Permission to Modify. This means users may continue to collect data using the Proxy2 approach by adapting the Proxy1 accordingly.

Ongoing and New Studies

Proxy2 versions currently in use as part of ongoing studies may continue to be used. However, for any new studies starting after 1 August 2025, the adapted Proxy1 must be used instead, as the EuroQol Office will no longer provide, distribute, or support the Proxy2 versions beyond this date.

For further information, please contact Gita Varma