Evidence map›Paper›PMID 25763530›Full record

ArticleNutrients2015

Vitamin A intake, serum vitamin D and bone mineral density: analysis of the Korea National Health and Nutrition Examination Survey (KNHANES, 2008-2011).

Nam-Seok Joo, Sung-Won Yang, Byeng Chun Song, Kyung-Jin Yeum

Open access · goldAbstract read
In one paragraph

Article in Nutrients, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.1field-weighted citation impact, top 23% 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

13 citing papers in PubMed, 31 citations in OpenAlex.

  1. Review
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  9. Vitamin A and Bone Health: A Review on Current Evidence.Molecules (Basel, Switzerland) · 2021
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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

4 authors at 2 institutions in 1 country.

Nam-Seok JooDepartment of Family Practice and Community Health, Ajou University School of Medicine, Suwon 443-781, Korea. jchcmc@daum.net.
Sung-Won YangDepartment of Family Practice and Community Health, Ajou University School of Medicine, Suwon 443-781, Korea. ysw8229@naver.com.
Byeng Chun SongDivision of Food and Bioscience, College of Biomedical and Health Sciences, Konkuk University, Chungju-si, Chungcheonbuk-do 380-701, Korea. bcsong@kku.ac.kr.
Kyung-Jin YeumDivision of Food and Bioscience, College of Biomedical and Health Sciences, Konkuk University, Chungju-si, Chungcheonbuk-do 380-701, Korea. kyeum@kku.ac.kr.
Ajou University · KRKonkuk University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The association of high vitamin A intake and low bone mineral density (BMD) is still controversial. To determine the association of dietary vitamin A intake and serum 25-hydroxyvitamin D (25(OH)D) concentration with BMD, a total of 6481 subjects (2907 men and 3574 women) aged ≥50 years from the Korean National Health and Nutrition Examination Survey (2008-2011) were divided into groups according to dietary vitamin A intake (tertiles) and serum 25(OH)D (<50, 50-75, >75 nmol/L), and evaluated for BMD after adjusting for relevant variables. Mean dietary vitamin A intakes were 737 and 600 μg RE (Retinol Equivalents) in men and women, respectively. Total hip and femoral neck BMD in men and lumbar spine BMD in women were both positively correlated with dietary vitamin A intake in subjects with serum 25(OH)D >75 nmol/L. Among men with serum 25(OH)D <50 nmol/L, both the top (mean 1353 μg RE) and bottom (mean 218 μg RE) tertiles of dietary vitamin A intake had lower BMD than the middle group (mean 577 μg RE). In this population, BMD was the highest among men and women with serum 25(OH)D = 50-75 nmol/L and that there were no differences in BMD by vitamin A intake in these vitamin D adequate groups. This cross-sectional study indicates that vitamin A intake does not affect bone mineral density as long as the serum 25(OH)D concentration is maintained in the moderate level of 50-75 nmol/L.

Indexed as

Bone DensityDietVitaminsBone and BonesCross-Sectional StudiesFemaleHumansMaleMiddle AgedNutrition SurveysOsteoporosisRepublic of KoreaVitamin AVitamin DVitamin D Deficiency25-hydroxyvitamin DVitamin AVitamin DVitamins

Identifiers

PMID25763530
PMCPMC4377877
OpenAlexW1980732744

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.