Evidence map›Paper›PMID 22190136›Full record

Trial reportEuropean journal of clinical nutrition2012

Improved nutritional status and bone health after diet-induced weight loss in sedentary osteoarthritis patients: a prospective cohort study.

P Christensen, E M Bartels, B F Riecke, H Bliddal, A R Leeds, A Astrup, K Winther, R Christensen

Open access · hybridAbstract readRandomized Controlled Trial
In one paragraph

Trial report in European journal of clinical nutrition, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
2.4field-weighted citation impact, top 12% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 37 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. 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
  5. Article
  6. Article
  7. Vitamin D Storage in Adipose Tissue of Obese and Normal Weight Women.Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2017
    Article
  8. The Association Between BMI and QCT-Derived Proximal Hip Structure and Strength in Older Men: A Cross-Sectional Study.Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2015
    Article
  9. Review
  10. Article
  11. Osteoarthritis, obesity and weight loss: evidence, hypotheses and horizons - a scoping review.Obesity reviews : an official journal of the International Association for the Study of Obesity · 2014
    Article
  12. Review
  13. Review
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

8 authors at 3 institutions in 2 countries.

P ChristensenThe Parker Institute, Copenhagen University Hospital at Frederiksberg, Frederiksberg, Denmark. robin.christensen@frh.regionh.dk
E M Bartels
B F Riecke
H Bliddal
A R Leeds
A Astrup
K Winther
R Christensen
Copenhagen University Hospital · DKFrederiksberg Hospital · DKUniversity of Copenhagen · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND/

objectivesObese subjects are commonly deficient in several micronutrients. Weight loss, although beneficial, may also lead to adverse changes in micronutrient status and body composition. The objective of the study is to assess changes in micronutrient status and body composition in obese individuals after a dietary weight loss program. SUBJECTS/

methodsAs part of a dietary weight loss trial, enrolling 192 obese patients (body mass index >30 kg/m2) with knee osteoarthritis (>50 years of age), vitamin D, ferritin, vitamin B12 and body composition were measured at baseline and after 16 weeks. All followed an 8-week formula weight-loss diet 415-810 kcal per day, followed by 8 weeks on a hypo-energetic 1200 kcal per day diet with a combination of normal food and formula products. Statistical analyses were based on paired samples in the completer population.

resultsA total of 175 patients (142 women), 91%, completed the 16-week program and had a body weight loss of 14.0 kg (95% confidence interval: 13.3-14.7; P<0.0001), consisting of 1.8 kg (1.3-2.3; P<0.0001) lean body mass (LBM) and 11.0 kg (10.4-11.6; P<0.0001) fat mass. Bone mineral content (BMC) did not change (-13.5 g; P=0.18), whereas bone mineral density (BMD) increased by 0.004 g/cm2 (0.001-0.008 g/cm2; P=0.025). Plasma vitamin D and B(12) increased by 15.3 nmol/l (13.2-17.3; P<0.0001) and 43.7 pmol/l (32.1-55.4; P<0.0001), respectively. There was no change in plasma ferritin.

conclusionsThis intensive program with formula diet resulted in increased BMD and improved vitamin D and B12 levels. Ferritin and BMC were unchanged and loss of LBM was only 13% of the total weight loss. This observational evidence supports use of formula diet-induced weight loss therapy in obese osteoarthritis patients.

Indexed as

Nutritional StatusWeight LossAgedBody CompositionBody Mass IndexBone and BonesBone DensityEnergy IntakeFemaleFerritinsHumansMaleMiddle AgedObesityOsteoarthritis, KneeProspective StudiesFerritinsVitamin B 12Vitamin D

Identifiers

PMID22190136
PMCPMC3321436
OpenAlexW2110919438

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.