Evidence map›Paper›PMID 29236049›Full record

Trial reportNutrients2017

Effect of Monthly, High-Dose, Long-Term Vitamin D on Lung Function: A Randomized Controlled Trial.

John D Sluyter, Carlos A Camargo, Debbie Waayer, Carlene M M Lawes, Les Toop, Kay-Tee Khaw, Robert Scragg

Open access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Nutrients, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed, 6 pooled it
5.5field-weighted citation impact, top 3% 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

36 citing papers in PubMed, 6 syntheses or guidelines pooled it, 68 citations in OpenAlex.

  1. Pooled it
  2. Vitamin D for the management of chronic obstructive pulmonary disease.The Cochrane database of systematic reviews · 2024
    Pooled it
  3. Pooled it
  4. Pooled it
  5. Vitamin D for the management of asthma.The Cochrane database of systematic reviews · 2023
    Pooled it
  6. Pooled it
  7. Trial
  8. Overview of results from the Vitamin D Assessment (ViDA) study.Journal of endocrinological investigation · 2019
    Trial
  9. Review
  10. Review
  11. Review
  12. Article
  13. Article
  14. Review
  15. Article
  16. Review
  17. Article
  18. Article
  19. Article
  20. Reasons to avoid vitamin D deficiency during COVID-19 pandemic.Archives of endocrinology and metabolism · 2021
    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

7 authors at 4 institutions in 3 countries.

John D SluyterSchool of Population Health, University of Auckland, Auckland 1072, New Zealand. j.sluyter@auckland.ac.nz.
Carlos A CamargoDepartment of Emergency Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA. ccamargo@partners.org.
Debbie WaayerSchool of Population Health, University of Auckland, Auckland 1072, New Zealand. d.waayer@auckland.ac.nz.
Carlene M M LawesSchool of Population Health, University of Auckland, Auckland 1072, New Zealand. carlene.lawes@waitematadhb.govt.nz.
Les ToopDepartment of General Practice, University of Otago, Christchurch 8011, New Zealand. les.toop@otago.ac.nz.
Kay-Tee KhawDepartment of Public Health and Primary Care, University of Cambridge, Cambridge CB3 OEQ, UK. kk101@medschl.cam.ac.uk.
Robert ScraggSchool of Population Health, University of Auckland, Auckland 1072, New Zealand. r.scragg@auckland.ac.nz.
University of Auckland · NZHarvard University · USUniversity of Cambridge · GBUniversity of Otago · NZ

Funding

Medical Research Council G1000143
6 · The paper itself

Abstract

Although observational studies suggest positive vitamin D-lung function associations, randomized trials are inconsistent. We examined effects of vitamin D supplementation on lung function. We recruited 442 adults (50-84 years, 58% male) into a randomized, double-blinded, placebo-controlled trial. Participants received, for 1.1 years (median; range = 0.9-1.5 years), either (1) vitamin D₃ 200,000 IU, followed by monthly 100,000 IU doses (

Indexed as

AgedAged, 80 and overAsthmaDietary SupplementsDose-Response Relationship, DrugDouble-Blind MethodFemaleFollow-Up StudiesForced Expiratory VolumeHumansLungMaleMiddle AgedPulmonary Disease, Chronic ObstructiveSpirometryVitamin DVitamin Dforced expiratory volume in 1 slung functionrandomized controlled trialspirometryvitamin D

Identifiers

PMID29236049
PMCPMC5748803
OpenAlexW2772252679

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.