Evidence map›Paper›PMID 30064434›Full record

ArticleHealth and quality of life outcomes2018

Health-related quality of life in relation to symptomatic and radiographic definitions of knee osteoarthritis: data from Osteoarthritis Initiative (OAI) 4-year follow-up study.

Soili Törmälehto, Mika E Mononen, Emma Aarnio, Jari P A Arokoski, Rami K Korhonen, Janne Martikainen

Abstract read
In one paragraph

Article in Health and quality of life outcomes, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
–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

20 citing papers in PubMed.

  1. Trial
  2. Trial
  3. Trial
  4. Article
  5. Review
  6. Article
  7. Article
  8. Telerehabilitation is as effective as outpatient visits in the management of early osteoarthritis knee and mechanical low backache.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2024
    Observational
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Joint effusion at 6 months is a significant predictor of joint effusion 1 year after anterior cruciate ligament reconstruction.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2021
    Article
  16. Association between knee symptoms, change in knee symptoms over 6-9 years, and SF-6D health state utility among middle-aged Australians.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2021
    Article
  17. Article
  18. Article
  19. Article
  20. Health-related quality of life and its influencing factors in Chinese with knee osteoarthritis.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2020
    Article
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

6 authors.

Soili TörmälehtoPharmacoeconomics and Outcomes Research Unit (PHORU), School of Pharmacy, University of Eastern Finland, Kuopio, Finland. soili.tormalehto@uef.fi.ORCID http://orcid.org/0000-0003-0138-2285
Mika E MononenDepartment of Applied Physics, University of Eastern Finland, Kuopio, Finland.
Emma AarnioPharmacoeconomics and Outcomes Research Unit (PHORU), School of Pharmacy, University of Eastern Finland, Kuopio, Finland.
Jari P A ArokoskiDepartment of Physical and Rehabilitation Medicine, Helsinki University Hospital, Helsinki, Finland.
Rami K KorhonenDepartment of Applied Physics, University of Eastern Finland, Kuopio, Finland.
Janne MartikainenPharmacoeconomics and Outcomes Research Unit (PHORU), School of Pharmacy, University of Eastern Finland, Kuopio, Finland.

Funding

Academy of Finland 305138European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme 755037
6 · The paper itself

Abstract

backgroundThe purpose was to quantify the decrement in health utility (referred as disutility) associated with knee osteoarthritis (OA) and different symptomatic and radiographic uni- and bilateral definitions of knee OA in a repeated measures design of persons with knee OA or at increased risk of developing knee OA.

methodsData were obtained from the Osteoarthritis Initiative database. SF-12 health-related quality of life was converted into SF-6D utilities, and were then handled as the health utility loss by subtracting 1.000 from the utility score, yielding a negative value (disutility). Symptomatic OA was defined by radiographic findings (Kellgren-Lawrence, K-L, grade ≥ 2) and frequent knee pain in the same knee. Radiographic OA was defined by five different definitions (K-L ≥ 2 unilaterally / bilaterally, or the highest / mean / combination of K-L grades of both knees). Repeated measures generalized estimating equation (GEE) models were used to investigate disutility in relation to these different definitions.

resultsUtility decreased with worsening of symptomatic or radiographic status of knee OA. The participants with bilateral and unilateral symptomatic knee OA had 0.03 (p < 0.001) and 0.02 (p < 0.001) points lower utility scores, respectively, compared with the reference group. The radiographic K-L grade 4 defined as the mean or the highest grade of both knees was related to a decrease of 0.04 (p < 0.001) and 0.03 (p < 0.001) points in utility scores, respectively, compared to the reference group.

conclusionsKnee OA is associated with diminished health-related quality of life. Health utility can be quantified in relation to both symptomatic and radiographic uni- and bilateral definitions of knee OA, and these definitions are associated with differing disutilities. The performance of symptomatic definition was better, indicating that pain experience is an important factor in knee OA related quality of life.

Indexed as

Health StatusAgedFemaleFollow-Up StudiesHumansKnee JointMaleMiddle AgedOsteoarthritis, KneePainQuality of LifeSeverity of Illness IndexHealth-related quality of lifeKnee osteoarthritisSF-12SF-6D

Identifiers

PMID30064434
PMCPMC6069966

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.