Evidence map›Paper›PMID 32255480›Full record

ArticleClinical chemistry2020

25-Hydroxyvitamin D and Risk of Osteoporotic Fractures: Mendelian Randomization Analysis in 2 Large Population-Based Cohorts.

Yunus Çolak, Shoaib Afzal, Børge G Nordestgaard

Open access · bronzeAbstract read
PubMed Publisher
In one paragraph

Article in Clinical chemistry, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
2.9field-weighted citation impact, top 8% 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, 1 synthesis or guideline pooled it, 24 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Health Effects of Vitamin D Supplementation: Lessons Learned From Randomized Controlled Trials and Mendelian Randomization Studies.Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2023
    Review
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  6. Article
  7. Article
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  12. Is the Sun Setting on Vitamin D?Clinical chemistry · 2020
    Article
  13. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 2 institutions in 1 country.

Yunus ÇolakDepartment of Clinical Biochemistry, Herlev and Gentofte Hospital, Copenhagen University Hospital, Herlev, Denmark.
Shoaib AfzalDepartment of Clinical Biochemistry, Herlev and Gentofte Hospital, Copenhagen University Hospital, Herlev, Denmark.
Børge G NordestgaardDepartment of Clinical Biochemistry, Herlev and Gentofte Hospital, Copenhagen University Hospital, Herlev, Denmark.
University of Copenhagen · DKGentofte Hospital · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundWhether low plasma 25-hydroxyvitamin D concentrations cause osteoporotic fractures is unclear. We tested the hypothesis that low plasma 25-hydroxyvitamin D concentrations are associated with increased risk of osteoporotic fractures using a Mendelian randomization analysis.

methodsWe genotyped 116 335 randomly chosen white Danish persons aged 20-100 years in 2 population-based cohort studies for plasma 25-hydroxyvitamin D decreasing genotypes in CYP2R1 (rs117913124 and rs12794714), DHCR7 (rs7944926 and rs11234027), GEMIN2 (rs2277458), and HAL (rs3819817); 35 833 had information on plasma 25-hydroxyvitamin D. We assessed risk of total, osteoporotic, and anatomically localized fractures from 1981 through 2017. Information on fractures and vital status was obtained from nationwide registries.

resultsDuring up to 36 years of follow-up, we observed 17 820 total fractures, 10 861 osteoporotic fractures, and 3472 fractures of hip or femur. Compared with individuals with 25-hydroxyvitamin D ≥ 50nmol/L, multivariable adjusted hazard ratios (95% CIs) for total fractures were 1.03 (0.97-1.09) for individuals with 25-49.9 nmol/L, 1.19 (1.10-1.28) for individuals with 12.5-24.9 nmol/L, and 1.39 (1.21-1.60) for individuals with 25-hydroxyvitamin D < 12.5 nmol/L. Corresponding hazard ratios were 1.07 (1.00-1.15), 1.25 (1.13-1.37), and 1.49 (1.25-1.77) for osteoporotic fractures and 1.09 (0.98-1.22), 1.37 (1.18-1.57), and 1.41 (1.09-1.81) for fractures of hip or femur, respectively. Hazard ratios per 1 increase in vitamin D allele score, corresponding to 3.0% (approximately 1.6 nmol/L) lower 25-hydroxyvitamin D concentrations, were 0.99 (0.98-1.00) for total fractures, 0.99 (0.97-1.00) for osteoporotic fractures, and 0.98 (0.95-1.00) for fractures of hip or femur.

conclusionsLow plasma 25-hydroxyvitamin D concentrations were associated with osteoporotic fractures; however, Mendelian randomization analysis provided no evidence supporting a causal role for vitamin D in the risk for osteoporotic fractures.

Indexed as

Risk FactorsAdultAgedAged, 80 and overCohort StudiesFemaleGenetic VariationHumansMaleMendelian Randomization AnalysisMiddle AgedOsteoporotic FracturesVitamin DVitamin D DeficiencyYoung Adult25-hydroxyvitamin DVitamin DBoneCalciumDietary SupplementsEndocrine SystemEpidemiologyFracturesGenetic PolymorphismMetabolismOsteoporosisVitamin D

Identifiers

PMID32255480
OpenAlexW3014770210

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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.