Evidence map›Paper›PMID 35837809›Full record

ArticleBone & joint open2022

Mapping analysis to predict the associated EuroQol five-dimension three-level utility values from the Oxford Knee Score : a prediction and validation study.

Nick D Clement, Irrum Afzal, Christian J H Peacock, Deborah MacDonald, Gavin J Macpherson, James T Patton, Vipin Asopa, David H Sochart, Deiary F Kader

Abstract read
In one paragraph

Article in Bone & joint open, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

5 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Mapping the NEI-VFQ-25 scores to the EQ-5D-Y-3L and CHU-9D utility values among adolescents with myopia.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2026
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Nick D ClementSouth West London Elective Orthopaedic Centre, Epsom, UK.ORCID 0000-0001-8792-0659
Irrum AfzalSouth West London Elective Orthopaedic Centre, Epsom, UK.ORCID 0000-0003-0199-8725
Christian J H PeacockSouth West London Elective Orthopaedic Centre, Epsom, UK.ORCID 0000-0002-2733-5295
Deborah MacDonaldDepartment of Orthopaedics, University of Edinburgh, Edinburgh, UK.ORCID 0000-0003-2682-1408
Gavin J MacphersonEdinburgh Orthopaedics, Royal Infirmary of Edinburgh, Edinburgh, UK.ORCID 0000-0002-5142-5768
James T PattonEdinburgh Orthopaedics, Royal Infirmary of Edinburgh, Edinburgh, UK.ORCID 0000-0003-2543-1918
Vipin AsopaSouth West London Elective Orthopaedic Centre, Epsom, UK.ORCID 0000-0001-8926-1343
David H SochartSouth West London Elective Orthopaedic Centre, Epsom, UK.
Deiary F KaderSouth West London Elective Orthopaedic Centre, Epsom, UK.ORCID 0000-0002-8332-2296

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsThe aims of this study were to assess mapping models to predict the three-level version of EuroQoL five-dimension utility index (EQ-5D-3L) from the Oxford Knee Score (OKS) and validate these before and after total knee arthroplasty (TKA).

methodsA retrospective cohort of 5,857 patients was used to create the prediction models, and a second cohort of 721 patients from a different centre was used to validate the models, all of whom underwent TKA. Patient characteristics, BMI, OKS, and EQ-5D-3L were collected preoperatively and one year postoperatively. Generalized linear regression was used to formulate the prediction models.

resultsThere were significant correlations between the OKS and EQ-5D-3L preoperatively (

conclusionThe OKS can be used to estimate EQ-5D-3L. Predicted individual patient utility error beyond the MCID varied from one-third to two-thirds depending on timepoint assessed, but the mean for a cohort did not differ and could be employed for this purpose. Cite this article:

Indexed as

ArthroplastyBMIEQ-5DEQ-5D-3Llinear regression analysisOutcomeOxford Knee Scorepatient-reported outcome measure (PROM)Pearson correlationPredictorsSpearman correlationstotal knee arthroplasty (TKA)t-test

Identifiers

PMID35837809
PMCPMC9350693

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.