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BMC Health Services Research
Published in: BMC Health Services Research 1/2016

Open Access 01-12-2016 | Research article

Performance of EQ-5D, howRu and Oxford hip & knee scores in assessing the outcome of hip and knee replacements

Authors: Tim Benson, Dan H Williams, Henry W W Potts

Published in: BMC Health Services Research | Issue 1/2016

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Abstract

Background

We aimed to compare the performance of EQ-5D-3 L and howRu, which are short generic patient-reported outcome measures (PROMs), in assessing the outcome of hip and knee replacements, using the Oxford Hip Score (OHS) and the Oxford Knee Scores (OKS) for comparison.

Methods

Outcome was assessed as the difference between pre-surgery and 6-month post-surgery scores. We used a large sample from the NHS PROMs database, which used EQ-5D-3 L, and a small cohort of patients having the same operations collected by MyClinicalOutcomes (MCO), which used howRu. Both cohorts completed the OHS (hips) or the OKS (knees).

Results

The change (outcome) between pre-op and post-op scores as measured by howRu was greater than that measured by EQ-5D, relative to that measured by OHS or OKS.
For hip replacements, the correlation for change measured by howRu and OHS was r = 0.77 (0.66–0.85). The corresponding correlation for change measured by EQ-5D Index and OHS was r = 0.64 (0.63–0.64).
For knee replacements the correlation between change in howRu and OKS was r = 0.86 (0.75–0.92); between EQ-5D Index and OKS r = 0.59 (0.58–0.60).

Conclusions

For hip and knee replacement, the outcome measured by howRu was more highly correlated with that measured by the condition-specific Oxford Hip and Knee Scores than were EQ-5D Index or EQ-VAS. The magnitude of change before and after surgery was also greater.
Appendix
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Metadata
Title
Performance of EQ-5D, howRu and Oxford hip & knee scores in assessing the outcome of hip and knee replacements
Authors
Tim Benson
Dan H Williams
Henry W W Potts
Publication date
01-12-2016
Publisher
BioMed Central
Published in
BMC Health Services Research / Issue 1/2016
Electronic ISSN: 1472-6963
DOI
https://doi.org/10.1186/s12913-016-1759-x

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