FAQS | EQ-5D-Y-5L

Can I use an adult EQ-5D-5L value set to derive EQ-5D values (utilities) for the EQ-5D-Y-5L?

At present, value sets for the EQ-5D-Y-5L are not available. The use of adult EQ-5D-5L value sets to generate EQ-5D values for EQ-5D-Y-5L health states is not recommended. The EQ-5D-5L and EQ-5D-Y-5L descriptive systems differ somewhat and preferences for child health may differ from preferences for adult health, which means that a value set for…

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Will there be a mapping study (crosswalk) available to map EQ-5D-Y-5L data to existing EQ-5D-Y-3L value sets? If not, how should data be analysed in the interim?

A mapping study has been commissioned which will allow EQ-5D-Y-5L outcomes to be mapped to existing EQ-5D-Y-3L value sets. Until the results of that study become available, it should be remembered that there are many ways of analysing EQ-5D-Y-5L data and most of them do not require the generation of EQ-5D values (i.e. utilities, or…

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Are there any published Y-5L valuation studies? If not, when will those be initiated?

There are currently no published EQ-5D-Y-5L value sets. A protocol is currently being developed to generate EQ-5D-Y-5L value sets, and upon completion of that protocol, value sets for the Y-5L instrument will be commissioned.

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Can the EQ-5D-Y-5L be modified or adapted for the purpose of my study?

All EQ instruments, including the EQ-5D-Y-5L are copyrighted. Without the prior written consent of the EuroQol Office, it is not permitted to alter, amend, convert, translate, publish or make available in whatever way (digital, hard-copy etc.) the EQ-5D-Y-5L and related proprietary materials.

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Is there anything I need to be aware of when using EQ-5D-Y-5L compared with EQ-5D-Y-3L?

A considerable number of studies have shown that the EQ-5D-Y-5L is a psychometrically sound instrument which performs at least as well as the EQ-5D-Y-3L, and sometimes better. It has been approved for use by the EuroQol Research Foundation after a long period of development and testing which is described in several publications. Of course, researchers…

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Should I switch from EQ-5D-Y-3L to EQ-5D-Y-5L?

Deciding whether to use the EQ-5D-Y-3L or the EQ-5D-Y-5L in any given context depends on many factors, including a study’s characteristics and aims, and the study population. The EQ-5D-Y-3L may be more appropriate in some instances, for example in younger populations, those with low literacy, or where interviewer-administration is required, as it is likely somewhat…

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Are the age ranges for use identical between the EQ-5D-Y-5L and EQ-5D-Y-3L?

It is currently recommended to use the self-complete EQ-5D-Y-5L in children aged 8-15 years, i.e. the children should complete the questionnaire themselves. In children aged 4-7 years, researchers should consider using the proxy version of EQ-5D-Y-5L (i.e. a version in which a parent or other caregiver provides a rating of the child’s health) or an…

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What are the main differences between EQ-5D-Y-3L and EQ-5D-Y-5L?

The EQ-5D-Y-3L and EQ-5D-Y-5L include the same dimensions (Mobility, Looking after myself, Doing Usual Activities, Having Pain or Discomfort, Feeling Worried, Sad or Unhappy) but the EQ-5D-Y-5L has five response options (or levels of severity) per dimension compared to the EQ-5D-Y-3L’s three levels. The level structure of the EQ-5D-Y-5L and the adult EQ-5D-5L are quite…

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What is the timeline for new translations of EQ-5D-Y-5L?

Translation timelines are based on multiple factors (the language, availability of source files, dependencies on other projects etc.). However, given that language versions of EuroQol instruments are produced following a very rigorous translation process, we generally operate with a default timeline of 4/5 months for new language versions. Click here for delivery timelines. A brief…

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What language versions and modes of administration are available?

The self/complete version of EQ-5D-Y-5L is available in paper and digital format for several languages, with more in development. Other modes of administration (proxy and interviewer-administered versions) will be available for some of those country/language pairs, and more will be added on an on-going basis. Please check on the EuroQol website for the latest list…

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