Evidence map›Paper›PMID 26412463›Full record

Trial reportCalcified tissue international2016

A Randomized Controlled Trial to Examine the Effect of 2-Year Vitamin B12 and Folic Acid Supplementation on Physical Performance, Strength, and Falling: Additional Findings from the B-PROOF Study.

Karin M A Swart, Annelies C Ham, Janneke P van Wijngaarden, Anke W Enneman, Suzanne C van Dijk, Evelien Sohl, Elske M Brouwer-Brolsma, Nikita L van der Zwaluw, M Carola Zillikens, Rosalie A M Dhonukshe-Rutten and 6 more

Open access · hybridAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Calcified tissue international, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
3.5field-weighted citation impact, top 8% 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

21 citing papers in PubMed, 1 synthesis or guideline pooled it, 41 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Article
  6. Sarcopenia in chronic kidney disease: from bench to bedside.The Korean journal of internal medicine · 2023
    Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Homocysteine: Its Possible Emerging Role in At-Risk Population Groups.International journal of molecular sciences · 2020
    Review
  17. Relationship between Homocysteine and Muscle Strength Decline: The Baltimore Longitudinal Study of Aging.The journals of gerontology. Series A, Biological sciences and medical sciences · 2018
    Article
  18. Vitamin B12 deficiency and impaired expression of amnionless during aging.Journal of cachexia, sarcopenia and muscle · 2018
    Article
  19. Article
  20. 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

16 authors at 4 institutions in 1 country.

Karin M A SwartDepartment of Epidemiology and Biostatistics and the EMGO Institute for Health and Care Research, VU University Medical Center, Van der Boechorststraat 7, 1081 BT, Amsterdam, The Netherlands. k.swart@vumc.nl.
Annelies C HamDepartment of Internal Medicine, Erasmus MC, P.O. Box 2040, 3000 CA, Rotterdam, The Netherlands.
Janneke P van WijngaardenDepartment of Human Nutrition, Wageningen University, P.O. Box 8129, 6700 EV, Wageningen, The Netherlands.
Anke W EnnemanDepartment of Internal Medicine, Erasmus MC, P.O. Box 2040, 3000 CA, Rotterdam, The Netherlands.
Suzanne C van DijkDepartment of Internal Medicine, Erasmus MC, P.O. Box 2040, 3000 CA, Rotterdam, The Netherlands.
Evelien SohlDepartment of Epidemiology and Biostatistics and the EMGO Institute for Health and Care Research, VU University Medical Center, Van der Boechorststraat 7, 1081 BT, Amsterdam, The Netherlands.
Elske M Brouwer-BrolsmaDepartment of Human Nutrition, Wageningen University, P.O. Box 8129, 6700 EV, Wageningen, The Netherlands.
Nikita L van der ZwaluwDepartment of Human Nutrition, Wageningen University, P.O. Box 8129, 6700 EV, Wageningen, The Netherlands.
M Carola ZillikensDepartment of Internal Medicine, Erasmus MC, P.O. Box 2040, 3000 CA, Rotterdam, The Netherlands.
Rosalie A M Dhonukshe-RuttenDepartment of Human Nutrition, Wageningen University, P.O. Box 8129, 6700 EV, Wageningen, The Netherlands.
Nathalie van der VeldeDepartment of Internal Medicine, Erasmus MC, P.O. Box 2040, 3000 CA, Rotterdam, The Netherlands.
Johannes BrugDepartment of Epidemiology and Biostatistics and the EMGO Institute for Health and Care Research, VU University Medical Center, Van der Boechorststraat 7, 1081 BT, Amsterdam, The Netherlands.
André G UitterlindenDepartment of Internal Medicine, Erasmus MC, P.O. Box 2040, 3000 CA, Rotterdam, The Netherlands.
Lisette C P G M de GrootDepartment of Human Nutrition, Wageningen University, P.O. Box 8129, 6700 EV, Wageningen, The Netherlands.
Paul LipsDepartment of Internal Medicine, Endocrine Section and the EMGO Institute for Health and Care Research, VU University Medical Center, P.O. Box 7057, 1007 MB, Amsterdam, The Netherlands.
Natasja M van SchoorDepartment of Epidemiology and Biostatistics and the EMGO Institute for Health and Care Research, VU University Medical Center, Van der Boechorststraat 7, 1081 BT, Amsterdam, The Netherlands.
EMGO Institute for Health and Care Research · NLWageningen University & Research · NLErasmus MC · NLErasmus University Rotterdam · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Elevated homocysteine concentrations are associated with a decline in physical function in elderly persons. Homocysteine-lowering therapy may slow down this decline. This study aimed to examine the effect of a 2-year intervention of vitamin B12 and folic acid supplementation on physical performance, handgrip strength, and risk of falling in elderly subjects in a double-blind, randomized placebo-controlled trial. Participants aged ≥65 years with elevated plasma homocysteine concentrations [12-50 µmol/L (n = 2919)] were randomly assigned to daily supplementation of 500 µg vitamin B12, 400 µg folic acid, and 600 IU vitamin D3, or to placebo with 600 IU vitamin D3. Physical performance (range 0-12) and handgrip strength (kg) were measured at baseline and after 2 years. Falls were reported prospectively on a research calendar. Intention-to-treat (primary) and per-protocol (secondary) analyses were performed. Physical performance level and handgrip strength significantly decreased during the follow-up period, but this decline did not differ between groups. Moreover, time to first fall was not significantly different (HR: 1.0, 95% CI 0.9-1.2). Secondary analyses on a per-protocol base identified an interaction effect with age on physical performance. In addition, the treatment was associated with higher follow-up scores on the walking test (cumulative OR: 1.3, 95% CI 1.1-1.5). Two-year supplementation of vitamin B12 and folic acid was neither effective in reducing the age-related decline in physical performance and handgrip strength, nor in the prevention of falling in elderly persons. Despite the overall null-effect, the results provide indications for a positive effect of the intervention on gait, as well as on physical performance among compliant persons >80 years. These effects should be further tested in future studies.

Indexed as

Accidental FallsAgedAged, 80 and overAgingDietary SupplementsFemaleFolic AcidHand StrengthHomocysteineHumansMaleMotor ActivityOsteoporotic FracturesPhysical FitnessVitamin B 12Folic AcidHomocysteineVitamin B 12AgingFallingFolic acidHomocysteinePhysical functionVitamin B12

Identifiers

PMID26412463
PMCPMC4703626
OpenAlexW2176625117

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

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.