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Quality of Life Research

Erschienen in:

20.12.2017

Comparing and transforming PROMIS utility values to the EQ-5D

verfasst von: John D. Hartman, Benjamin M. Craig

Erschienen in: Quality of Life Research | Ausgabe 3/2018

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Abstract

Purpose

Summarizing patient-reported outcomes (PROs) on a quality-adjusted life year (QALY) scale is an essential component to any economic evaluation comparing alternative medical treatments. While multiple studies have compared PRO items and instruments based on their psychometric properties, no study has compared the preference-based summary of the EQ-5D-3L and Patient Reported Outcomes Measurement Information System (PROMIS-29) instruments. As part of this comparison, a major aim of this manuscript is to transform PROMIS-29 utility values to an EQ-5D-3L scale.

Methods

A nationally representative survey of 2623 US adults completed the 29-item PROMIS health profile instrument (PROMIS-29) and the 3-level version of the EQ-5D instrument (EQ-5D-3L). Their responses were summarized on a health utility scale using published estimates. Using regression analysis, PROMIS-29 and EQ-5D-3L utility weights were compared with each other as well as with self-reported general health.

Results

PROMIS-29 utility weights were much lower than the EQ-5D-3L weights. However, a correlation coefficient of 0.769 between the utility values of the two instruments suggests that the main discordance is simply a difference in scale between the measures. It is also possible to map PROMIS-29 utility weights onto an EQ-5D-3L scale. EQ-5D-3L losses equal .1784 × (PROMIS-29 Losses)^.7286.

Conclusions

The published estimates of the PROMIS-29 produce lower utility values than many other health instruments. Mapping the PROMIS-29 estimates to an EQ-5D-3L scale alleviates this issue and allows for a more straightforward comparison between the PROMIS-29 and other common health instruments.

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Titel: Comparing and transforming PROMIS utility values to the EQ-5D
verfasst von: John D. Hartman
Benjamin M. Craig
Publikationsdatum: 20.12.2017
Verlag: Springer International Publishing
Erschienen in: Quality of Life Research / Ausgabe 3/2018
Print ISSN: 0962-9343
Elektronische ISSN: 1573-2649
DOI: https://doi.org/10.1007/s11136-017-1769-0

Springer Medizin

Abstract

Purpose

Methods

Results

Conclusions

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