Evidence map›Paper›PMID 34062200›Full record

ArticleEnvironmental research2021

Urinary cadmium and stroke - a case-cohort study in Danish never-smokers.

Aslak Harbo Poulsen, Clara G Sears, James Harrington, Chanelle J Howe, Katherine A James, Nina Roswall, Kim Overvad, Anne Tjønneland, Gregory A Wellenius, Jaymie Meliker and 1 more

Open access · goldAbstract read
In one paragraph

Article in Environmental research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 2 pooled it
2.0field-weighted citation impact, top 15% 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, 2 syntheses or guidelines pooled it, 29 citations in OpenAlex.

  1. Pooled it
  2. Environmental toxic metal contaminants and risk of stroke: a systematic review and meta-analysis.Environmental science and pollution research international · 2022
    Pooled it
  3. Article
  4. Article
  5. Dietary Minerals and Incident Cardiovascular Outcomes among Never-Smokers in a Danish Case-Cohort Study.International journal of environmental research and public health · 2024
    Article
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  8. Review
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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

11 authors at 8 institutions in 2 countries.

Aslak Harbo PoulsenDanish Cancer Society Research Center, Copenhagen, Denmark. Electronic address: aslak@cancer.dk.
Clara G SearsDepartment of Epidemiology, Brown University School of Public Health, Providence, RI, USA.
James HarringtonCenter for Analytical Science, Research Triangle Institute, Research Triangle Park, NC, USA.
Chanelle J HoweDepartment of Epidemiology, Brown University School of Public Health, Providence, RI, USA.
Katherine A JamesDepartment of Environmental and Occupational Health, Colorado School of Public Health, University of Colorado-Anschutz Medical Campus, USA.
Nina RoswallDanish Cancer Society Research Center, Copenhagen, Denmark.
Kim OvervadDepartment of Public Health, Aarhus University, Aarhus, Denmark; Department of Cardiology, Aalborg University Hospital, Aalborg, Denmark.
Anne TjønnelandDanish Cancer Society Research Center, Copenhagen, Denmark; Department of Public Health University of Copenhagen. Copenhagen, Denmark.
Gregory A WelleniusDepartment of Epidemiology, Brown University School of Public Health, Providence, RI, USA; Department of Environmental Health, Boston University, Boston, MA, USA.
Jaymie MelikerProgram in Public Health, Department of Family, Population, & Preventive Medicine, Stony Brook University, Stony Brook, NY, USA.
Ole Raaschou-NielsenDanish Cancer Society Research Center, Copenhagen, Denmark; Department of Environmental Science, Aarhus University, Roskilde, Denmark.
Aarhus University · DKBrown University · USDanish Cancer Society · DKBoston University · USColorado School of Public Health · USRTI International · USStony Brook University · USUniversity of Copenhagen · DK

Funding

Metal-nutrient mixtures in epidemiologic and toxicologic studies of cardiovascular diseaseR01ES030938 · NIEHS · STATE UNIVERSITY NEW YORK STONY BROOK · PI MELIKER, JAYMIE R · 2020 to 2022
$1.8M
Urine Cadmium and Risk of Cardiovascular DiseaseR01ES026614 · NIEHS · STATE UNIVERSITY NEW YORK STONY BROOK · PI MELIKER, JAYMIE R · 2017 to 2020
$1.7M
DNA Repair in Chromatin: The First 40 years (and Beyond)R13ES025514 · NIEHS · WASHINGTON STATE UNIVERSITY · PI SMERDON, MICHAEL J · 2015 to 2015
$6k
NIEHS NIH HHS R01 ES026614NIEHS NIH HHS R01 ES030938NIEHS NIH HHS R13 ES025514
6 · The paper itself

Abstract

backgroundand Purpose: Cadmium has been associated with risk of cardiovascular events, including stroke. Human cadmium exposure occurs primarily through diet and tobacco smoke. Recent cohort studies have found an association with stroke, but residual confounding from smoking, could not be ruled out. We therefore conducted a case-cohort study to evaluate whether cadmium is associated with stroke in never-smokers.

methodsThe Danish Diet Cancer and Health cohort consists of Danes 50-64 years old, recruited in 1993-1997. From never-smoking cohort members without previous cancer or stroke we sampled a sub-cohort of 1200 persons. We also identified all (n = 534) cases in the cohort with a validated stroke diagnosis between baseline and 2009. We quantified cadmium and creatinine concentrations from baseline urine samples and used cadmium per creatinine as our main exposure metric. We used Cox proportional hazards models to estimate hazard ratios (HRs) with age as time scale and adjusting for BMI, education and urinary cotinine with and without stratification by sex.

resultsThe median urinary cadmium concentration was 0.21 μg cadmium/g creatinine in cases and 0.19 μg/g in the sub-cohort. The majority (83%) of stroke cases were diagnosed with ischemic stroke. The HR for stroke in the highest quartile of exposure (median 0.44 μg/g creatinine) was 1.11 (95% CI: 0.79-1.54) compared with the lowest quartile (median 0.10 μg/g creatinine). The HR per inter quartile range (IQR, 0.19 μg/g creatinine) was 1.02 (95% CI: 0.92-1.12). Among men, the HR per IQR higher levels of cadmium (0.16 μg/g creatinine) was 1.18 (95% CI: 0.92-1.52), and 1.00 (95% CI: 0.89-1.12) among women. Adjusting for creatinine or using osmolality instead of creatinine standardization generally attenuated observed relationships.

conclusionsOur results do not support that low levels of cadmium exposure among never-smokers are strongly associated with risk of stroke, although results varied somewhat by sex and method of accounting for urinary dilution.

Indexed as

CadmiumStrokeCohort StudiesDenmarkEnvironmental ExposureFemaleHumansMaleMiddle AgedSmokersCadmiumCadmiumCardiovascular diseaseCase-cohort studyStroke

Identifiers

PMID34062200
PMCPMC8403651
OpenAlexW3165303202

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.