Evidence map›Paper›PMID 28557644›Full record

ArticleJournal of nutrition in gerontology and geriatrics

Dietary and Supplemental Vitamin C and D on Symptom Severity and Physical Function in Knee Osteoarthritis.

Man Hung, Jerry Bounsanga, Maren W Voss, Yushan Gu, Anthony B Crum, Philip Tang

Abstract read
In one paragraph

Article in Journal of nutrition in gerontology and geriatrics. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
1.0field-weighted citation impact, top 25% 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

6 citing papers in PubMed, 20 citations in OpenAlex.

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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 at 1 institution in 1 country.

Man Hunga University of Utah Department of Orthopaedics , Salt Lake City , Utah , USA.ORCID 0000-0003-2827-3740
Jerry Bounsangaa University of Utah Department of Orthopaedics , Salt Lake City , Utah , USA.
Maren W Vossa University of Utah Department of Orthopaedics , Salt Lake City , Utah , USA.
Yushan Gua University of Utah Department of Orthopaedics , Salt Lake City , Utah , USA.
Anthony B Cruma University of Utah Department of Orthopaedics , Salt Lake City , Utah , USA.ORCID 0000-0002-4832-2530
Philip Tanga University of Utah Department of Orthopaedics , Salt Lake City , Utah , USA.
University of Utah · US

Funding

University of Utah Center for Clinical and Translational ScienceUL1TR001067 · NCATS · UNIVERSITY OF UTAH · PI DERE, WILLARD H., HESS, RACHEL · 2013 to 2017
$19.8M
NCATS NIH HHS UL1 TR001067
6 · The paper itself

Abstract

Vitamins C and D have been associated with decreasing pain and increasing function but these associations are not definitive. This cross-sectional study explores what relationships supplemental and dietary intake of vitamins C and D have on pain severity and physical function in patients with knee osteoarthritis. Using data from the Osteoarthritis Initiative, we performed regression analyses to examine relationships between vitamins C and D, pain, and function. Dietary vitamin D and dietary vitamin C were divided into >90th, 50th-90th, and <50th percentile. The high percentile group for supplemental vitamin D was divided into >85th percentile, whereas the high percentile group for supplemental vitamin C was divided into >90th percentile. We found the 90th/85th percentile levels of dietary and supplemental vitamin D to be positively associated with pain (β = 0.180; p = 0.028) and inversely related to physical function (β = -0.150, p = 0.028), respectively. Daily intake of vitamin C showed no statistical significance. We found that supplementary vitamin D was strongly associated with lessened disability for knee OA patients. The unexpected finding that associated dietary vitamin D with greater knee pain merits further study.

Indexed as

Dietary SupplementsAgedAscorbic AcidCross-Sectional StudiesFemaleHumansMaleMiddle AgedOsteoarthritis, KneePain MeasurementRange of Motion, ArticularSurveys and QuestionnairesUtahVitamin DAscorbic AcidVitamin DNutritionosteoarthritisphysical functionvitamin Cvitamin D

Identifiers

PMID28557644
PMCPMC6088727
OpenAlexW2619761478

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.