Evidence map›Paper›PMID 29889866›Full record

ArticlePloS one2018

A novel inverse association between cord 25-hydroxyvitamin D and leg length in boys up to three years. An Odense Child Cohort study.

Mathilde Egelund Christensen, Signe Sparre Beck-Nielsen, Christine Dalgård, Søs Dragsbæk Larsen, Sine Lykkedegn, Henriette Boye Kyhl, Steffen Husby, Henrik Thybo Christesen

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

3 citing papers in PubMed, 6 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

8 authors at 2 institutions in 1 country.

Mathilde Egelund ChristensenDepartment of Clinical Research, Faculty of Health Sciences, University of Southern Denmark, Odense, Denmark.ORCID 0000-0002-8528-6671
Signe Sparre Beck-NielsenDepartment of Pediatrics, Kolding Hospital a part of Lillebaelt Hospital, Kolding, Denmark.
Christine DalgårdDepartment of Regional Health Research, Faculty of Health Sciences, University of Southern Denmark, Odense, Denmark.
Søs Dragsbæk LarsenDepartment of Clinical Research, Faculty of Health Sciences, University of Southern Denmark, Odense, Denmark.
Sine LykkedegnHans Christian Andersen Children's Hospital, Odense University Hospital, Odense, Denmark.
Henriette Boye KyhlOdense Child Cohort, Hans Christian Andersen Children's Hospital, Odense University Hospital, Odense, Denmark.
Steffen HusbyHans Christian Andersen Children's Hospital, Odense University Hospital, Odense, Denmark.
Henrik Thybo ChristesenDepartment of Clinical Research, Faculty of Health Sciences, University of Southern Denmark, Odense, Denmark.
University of Southern Denmark · DKOdense University Hospital · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

aimLong standing vitamin D deficiency in children causes rickets with growth impairment. We investigated whether sub-ischial leg length (SLL) is shorter, and cephalo-caudal length:length (CCL:L) ratio and sitting height:height (SH:H) ratio larger, with lower cord s-25-hydroxyvitamin D (25OHD) in the population-based prospective Odense Child Cohort, Denmark.

methodsWe included healthy singletons born to term with available measures of cord 25OHD and anthropometrics up to three years' age. Linear regression was stratified by sex a priori and adjusted for maternal ethnicity, pre-pregnancy body mass index and smoking during pregnancy, season of blood sampling and child age.

resultsMedian (IQR) cord 25OHD was 48.0 (34.0-62.4) nmol/L. At mean age 19.1 months, n = 504, mean (SD) SLL was 31.7 (1.7) cm; CCL:L-ratio 0.62 (0.01). At 36.3 months, n = 956, mean SLL was 42.9 (2.0) cm; SH:H-ratio 0.56 (0.01). No participants had rickets. In adjusted analyses, 19-months-old boys had 0.1 cm shorter SLL (p = 0.009) and 0.1% higher CCL:L-ratio (p = 0.04) with every 10 nmol/L increase in cord 25OHD. Similar findings were seen for late pregnancy 25OHD. In the highest cord 25OHD quartile (>60.7 nmol/L), SLL was 0.8 cm shorter (95% C.I.: 1.36;-0.29, linear trend, p = 0.004), and CCL:L-ratio 0.8% higher (95% C.I. 8.0x10-05;0.01, linear trend, p = 0.01), compared to lowest quartile (<30.7 nmol/L). Similar associations with cord 25OHD were observed in 3-year-old boys. No consistent associations between 25OHD and anthropometrics were seen in girls at either age.

conclusionNo leg shortening was found with decreasing cord s-25OHD in a healthy population of infants. A small, yet significant inverse association between cord 25OHD and SLL in boys 1½-3 years warrants further investigations.

Indexed as

AdultBody HeightBody Mass IndexChild, PreschoolCholecalciferolCohort StudiesDietary SupplementsFemaleGestational AgeHumansInfantLegLinear ModelsMaleSmokingVitamin D25-hydroxyvitamin DCholecalciferolVitamin D

Identifiers

PMID29889866
PMCPMC5995352
OpenAlexW2807798868

What OpenQuestion holds

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LicenceCC BY
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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.