Appraisal of: "Dakin H, Abel L, Burns R, Yang Y. Review and critical appraisal of studies mapping from quality of life or clinical measures to EQ-5D: an online database and application of the MAPS statement. Health Qual Life Outcomes. 2018;16:202."

Short description: 

This paper presents an updated systematic review of studies reporting mapping algorithms from clinical or patient reported outcome measures to EQ-5D-3L or EQ-5D-5L, as well as an assessment of how far mapping studies conform to the MAPS reporting statement.

The review identified 144 mapping studies reporting 190 algorithms mapping from 110 different instruments onto EQ-5D. The 15/17 studies published in 2016 had low adherence to the MAPS checklist.

The mapping studies can be accessed in the Health Economics Research Centre (HERC) Database of Mapping Studies, available at This database was created in 2013 and is focused on studies mapping to EQ-5D.

Limitations stated by the author(s): 

The review did not include a search of EMBASE. Single reviewer data extraction was undertaken. Only 2016 studies were assessed against the MAPS criteria.

Limitations stated by the reviewer(s): 
The authors do not describe how frequently they update the database.
Study Type: 
Single study