Evidence map›Paper›PMID 29067258›Full record

ArticleJournal of clinical & translational endocrinology2017

Serum 25-hydroxyvitamin D but not dietary vitamin D intake is associated with hemoglobin in women of reproductive age in rural northern Vietnam.

Ellen S Michalski, Phuong H Nguyen, Ines Gonzalez-Casanova, Son V Nguyen, Reynaldo Martorell, Vin Tangpricha, Usha Ramakrishnan

Open access · goldAbstract read
In one paragraph

Article in Journal of clinical & translational endocrinology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
0.9field-weighted citation impact, top 26% 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

7 citing papers in PubMed, 10 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

7 authors at 2 institutions in 2 countries.

Ellen S MichalskiNutrition and Health Sciences Program, Laney Graduate School, Emory University, Atlanta, GA 30322, USA.
Phuong H NguyenThai Nguyen University of Pharmacy and Medicine, Thai Nguyen, Viet Nam.
Ines Gonzalez-CasanovaHubert Department of Global Health, Emory University, Atlanta GA 30322, USA.
Son V NguyenThai Nguyen University of Pharmacy and Medicine, Thai Nguyen, Viet Nam.
Reynaldo MartorellNutrition and Health Sciences Program, Laney Graduate School, Emory University, Atlanta, GA 30322, USA.
Vin TangprichaNutrition and Health Sciences Program, Laney Graduate School, Emory University, Atlanta, GA 30322, USA.
Usha RamakrishnanNutrition and Health Sciences Program, Laney Graduate School, Emory University, Atlanta, GA 30322, USA.
Emory University · USThai Nguyen University · VN

Funding

Atlanta Clinical and Translational Science Institute (ACTSI) RenewalUL1TR000454 · NCATS · EMORY UNIVERSITY · PI STEPHENS, DAVID S · 2012 to 2016
$25.8M
Nutrition Sciences and HealthT32DK007734 · NIDDK · EMORY UNIVERSITY · PI RAMAKRISHNAN, USHA · 1997 to 2016
$2.5M
NCATS NIH HHS UL1 TR000454NIDDK NIH HHS T32 DK007734
6 · The paper itself

Abstract

BACKGROUND AND

objectivesHypovitaminosis D and anemia are both prevalent in Vietnam, and low vitamin D status may be a risk factor for anemia. This study aimed to 1) describe vitamin D intake and its determinants, and 2) examine the associations of vitamin D intake and serum 25(OH)D concentrations with hemoglobin and anemia. METHODS AND STUDY

designWe used data from the baseline survey of a pre-conceptual micronutrient supplementation trial in women of reproductive age (WRA) in Thai Nguyen, Vietnam (N = 4961). Vitamin D intake was estimated using a semi-quantitative food frequency questionnaire (FFQ). Multivariable regression models were used for the analyses.

resultsMedian vitamin D intake was 0.2 µg/d (8.0 IU) [IQR: 0.4]. Age, being a farmer, food insecurity, and body mass index (BMI) were inversely associated with vitamin D intake, while socioeconomic status (SES), total energy intake, and education were positively associated with vitamin D intake. Vitamin D intake was not associated with hemoglobin concentration or anemia after adjusting for age, BMI, total energy intake, transferrin receptor, C-reactive protein, α

conclusionsLow vitamin D status may be linked to reduced hemoglobin concentrations, but the role of diet in this association was not evident in this population of WRA in Vietnam where dietary vitamin D intake was very low.

Indexed as

25(OH)D, 25-hydroxyvitamin DAGP, α1-acid glycoproteinAMDR, acceptable macronutrient distribution rangeAnemiaCRP, C-reactive proteinDietary intakeEAR, estimated average requirementHemoglobinIOM, Institute of MedicineIQR, interquartile rangeRBP, retinol binding proteinSD, standard deviationSES, socioeconomic statusSE, standard errorsTfR, soluble transferrin receptorVietnamVitamin DWHO, World Health OrganizationWRA, women of reproductive age

Identifiers

PMID29067258
PMCPMC5651337
OpenAlexW2611010886

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.