Evidence map›Paper›PMID 22505346›Full record

ArticleArthritis care & research2013

Body weight changes and corresponding changes in pain and function in persons with symptomatic knee osteoarthritis: a cohort study.

Daniel L Riddle, Paul W Stratford

Open access · greenAbstract readMulticenter Study
PubMed Full text at PMC Publisher
In one paragraph

Article in Arthritis care & research, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 65 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
65citing papers in PubMed, 3 pooled it
7.4field-weighted citation impact, top 2% of its field
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

65 citing papers in PubMed, 3 syntheses or guidelines pooled it, 142 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Trial
  5. Trial
  6. Trial
  7. Trial
  8. Article
  9. Article
  10. Review
  11. Article
  12. Review
  13. Article
  14. Article
  15. Review
  16. Article
  17. Five-Year Impact of Weight Loss on Knee Pain and Quality of Life in Obese Patients.Medical science monitor : international medical journal of experimental and clinical research · 2025
    Article
  18. Article
  19. Article
  20. Review

5 more citing papers are in PubMed but not listed here.

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

2 authors at 2 institutions in 2 countries.

Daniel L RiddleDepartments of Physical Therapy and Orthopaedic Surgery, Virginia Commonwealth University, Richmond, VA 23298, USA. dlriddle@vcu.edu
Paul W Stratford
McMaster University · CAVirginia Commonwealth University · US

Funding

Multicenter Osteoarthritis Study (MOST) Second RenewalU01AG019069 · NIA · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI NEVITT, MICHAEL C · 2001 to 2020
$21.7M
Multicenter Osteoarthritis Study (MOST) Second Renewal: Iowa Clinical CenterU01AG018832 · NIA · UNIVERSITY OF IOWA · PI SEGAL, NEIL A, TORNER, JAMES C · 2001 to 2020
$14.1M
Multicenter Osteoarthritis Study (MOST) Second Renewal - Boston UniversityU01AG018820 · NIA · BOSTON UNIVERSITY MEDICAL CAMPUS · PI FELSON, DAVID TOBIN · 2001 to 2019
$13.6M
Multicenter Osteoarthritis Study (MOST) Second Renewal - UAB Clinical CenterU01AG018947 · NIA · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI LEWIS, CORA E · 2001 to 2020
$13.2M
DATA COORDINATING CENTER FOR THE OSTEOARTHRITIS INITIATIVE-264022258N01AR022258 · NIAMS · UNIVERSITY OF CALIFORNIA SYS OFFICE/PRES · 2003 to 2003
–
CLINICAL CENTER FOR THE OSTEOARTHRITIS-264022262-264022262N01AR022262 · NIAMS · THE MEMORIAL HOSPITAL · PI ASSAF, ANNLOUISE R. · 2002 to 2006
–
CLINICAL CENTERS FOR THE OSTEOARTHRITIS INITIATIVE-264022259-264022259N01AR022259 · NIAMS · UNIVERSITY OF MARYLAND AT BALT · PI HOCHBERG, MARC C. · 2002 to 2006
–
CLINICAL CENTERS FOR THE OSTEOARTHRITIS INITIATIVE-N01AR22260N01AR022260 · NIAMS · UNIVERSITY OF PITTSBURGH · PI KWOH, KENT · 2002 to 2006
–
CLINICAL CENTERS FOR THE OSTEOARTHRITIS INITIATIVE-N01AR22261N01AR022261 · NIAMS · OHIO STATE UNIVERSITY RESEARCH · PI JACKSON, REBECCA · 2002 to 2006
–
NIAMS NIH HHS N01 AR022258NIAMS NIH HHS N01-AR-2-2258NIAMS NIH HHS N01-AR-2-2259NIAMS NIH HHS N01-AR-2-2260NIAMS NIH HHS N01-AR-2-2261NIAMS NIH HHS N01-AR-2-2262NIA NIH HHS AG18820NIA NIH HHS AG18832NIA NIH HHS AG18947NIA NIH HHS AG19069
6 · The paper itself

Abstract

objectiveTo determine if a dose-response relationship exists between percentage changes in body weight in persons with symptomatic knee osteoarthritis (OA) and self-reported pain and function.

methodsData from persons in the Osteoarthritis Initiative (OAI) and the Multicenter Osteoarthritis (MOST) study data sets (n = 1,410) with symptomatic function-limiting knee OA were studied. For the OAI, we used baseline and 3-year followup data, while for the MOST study, baseline and 30-month data were used. Key outcome variables were Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) physical function and pain change scores. In addition to covariates, the predictor variable of interest was the extent of weight change over the study period divided into 5 categories representing different percentages of body weight change.

resultsA significant dose-response relationship (P < 0.003) was found between the extent of percentage change in body weight and the extent of change in WOMAC physical function and WOMAC pain scores. For example, persons who gained ≥10% of body weight had WOMAC physical function score changes of -5.4 (95% confidence interval -8.7, -2.00) points, indicating worsening physical function relative to the reference group of persons with weight changes between <5% weight gain and <5% weight reduction.

conclusionOur data suggest a dose-response relationship exists between changes in body weight and corresponding changes in pain and function. The threshold for this response gradient appears to be body weight shifts of ≥10%. Weight changes of ≥10% have the potential to lead to important changes in pain and function for patient groups as well as individual patients.

Indexed as

Weight GainWeight LossAgedFemaleHumansMaleMiddle AgedMobility LimitationOsteoarthritis, KneePainRange of Motion, Articular

Identifiers

PMID22505346
PMCPMC3401342
OpenAlexW2046334149

What OpenQuestion holds

Textmetadata
LicenceTDM
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.