Journal article
Minimal important changes and differences were estimated for Oxford hip and knee scores following primary and revision arthroplasty
- Abstract:
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Objectives
To create estimates for clinically meaningful changes and differences in pain and joint function for the Oxford Hip and Knee Scores (OHS/OKS) in primary and revision joint replacement.
Study Design and Setting
694,487 primary and revision joint replacement procedures were analyzed from the NHS PROMs dataset between 2012-2020. Minimal important changes (MIC) and differences (MID) were calculated using distribution and anchor-based methods (including receiver-operating characteristic (ROC) curve and predictive-modelling techniques).
Results
For comparison of two or more groups (such as in a clinic trial), MID estimates were ∼5 points. For cohort studies investigating changes over time in a single group of patients, MICgroup estimates were 12.4 points (primary hip replacement), 8.6 points (revision hip replacement), 10.5 points (primary knee replacement) and 9.4 points (revision knee replacement). For studies investigating changes over time at the individual patient level, MICadjusted estimates were ∼8 points, ∼6 points, ∼7 points and ∼6 points respectively.
Conclusion
This study has calculated contemporary estimates of clinically important changes and differences for the OHS/OKS for primary and revision hip and knee replacement. These estimates can be used to inform sample size calculations and to interpret changes in joint function over time and differences between groups.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, 1.3MB, Terms of use)
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- Publisher copy:
- 10.1016/j.jclinepi.2021.12.016
Authors
- Publisher:
- https://www.elsevier.com/en-gb
- Journal:
- Journal of Clinical Epidemiology More from this journal
- Volume:
- 143
- Pages:
- P159-168
- Publication date:
- 2021-12-15
- Acceptance date:
- 2021-12-09
- DOI:
- ISSN:
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0895-4356
- Language:
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English
- Keywords:
- Pubs id:
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1226801
- Local pid:
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pubs:1226801
- Deposit date:
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2021-12-22
Terms of use
- Copyright holder:
- Sabah et al.
- Copyright date:
- 2021
- Rights statement:
- ©2021 The Author(s). Published by Elsevier Inc. This is an open access article distributed under the terms of the Creative Commons CC-BY license, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
- Licence:
- CC Attribution (CC BY)
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