Evidence map›Paper›PMID 21648285›Full record

ArticleJournal of pediatric endocrinology & metabolism : JPEM2011

Pediatric 25-hydroxyvitamin D concentrations in neurofibromatosis type 1.

David A Stevenson, David H Viskochil, John C Carey, Xiaoming Sheng, Mary Murray, Laurie Moyer-Mileur, Judd Shelton, William L Roberts, Ashley M Bunker, Heather Hanson and 2 more

Open access · greenAbstract read
In one paragraph

Article in Journal of pediatric endocrinology & metabolism : JPEM, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
2.6field-weighted citation impact, top 11% 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

11 citing papers in PubMed, 30 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

12 authors at 2 institutions in 1 country.

David A StevensonDepartment of Pediatrics, University of Utah, Salt Lake City, UT 84132, USA. david.stevenson@hsc.utah.edu
David H Viskochil
John C Carey
Xiaoming Sheng
Mary Murray
Laurie Moyer-Mileur
Judd Shelton
William L Roberts
Ashley M Bunker
Heather Hanson
Stephanie Bauer
Jacques L D'Astous
University of Utah · USPediatrics and Genetics · US

Funding

VIRAL DAMAGE TO BRAIN AND NEUROMUSCULAR SYSTEMM01RR000064 · NCRR · UNIVERSITY OF UTAH · PI SWOBODA, KATHRYN J. · 1985 to 2008
$21.7M
Osseous Abnormalities in Neurofibromatosis Type 1K23NS052500 · NINDS · UNIVERSITY OF UTAH · PI STEVENSON, DAVID ANDREW · 2005 to 2009
$880k
NCRR NIH HHS M01 RR000064NCRR NIH HHS M01-RR00064NINDS NIH HHS K23 NS052500
6 · The paper itself

Abstract

objectiveLow 25-hydroxyvitamin D (25OHD) concentrations have been associated with tumors and osteopenia or fractures in adults with neurofibromatosis type 1 (NF1). We report 25OHD concentrations in 109 children with NF1 and 218 controls matched for age, sex, geographic location, and time of year.

methodsChildren with NF1 were recruited (n=109; 2-17 years), and clinical data and dual-energy X-ray absorptiometry measurements were obtained. 25OHD concentrations were measured in subjects and controls.

resultsMore NF1 individuals (50%) were in the 25OHD insufficient or deficient range (<30 ng/mL) (1 ng/mL = 2.496 nmol/L) compared to controls (36%) (p = 0.0129). 25OHD concentrations were higher in individuals with neurofibromas after controlling for age (p = 0.0393), and were negatively associated with whole-body subtotal bone mineral density (BMD) z-scores (p = 0.0385).

conclusionsMore children with NF1 had 25OHD concentrations <30 ng/mL, potentially because of increased pigmentation and/or decreased sunlight exposure. In contrast to adults, decreased 25OHD concentrations were not associated with neurofibromas, and there was no positive association between 25OHD and BMD.

Indexed as

Absorptiometry, PhotonAdolescentBone DensityChildChild, PreschoolCohort StudiesFemaleHumansMaleNeurofibromatosis 1Vitamin DWhole Body Imaging25-hydroxyvitamin DVitamin D

Identifiers

PMID21648285
PMCPMC3246508
OpenAlexW2048846881

What OpenQuestion holds

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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.