Evidence map›Paper›PMID 34412513›Full record

ArticleStroke2021

Serum Zinc Levels and Incidence of Ischemic Stroke: The Reasons for Geographic and Racial Differences in Stroke Study.

Lindsey Mattern, Cheng Chen, Leslie A McClure, John Brockman, Mary Cushman, Suzanne Judd, Ka Kahe

Open access · bronzeAbstract read
In one paragraph

Article in Stroke, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
2.7field-weighted citation impact, top 10% 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

15 citing papers in PubMed, 30 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 6 institutions in 1 country.

Lindsey MatternDepartment of Anthropology, College of Arts and Sciences, Indiana University (L.M.).
Cheng ChenDepartment of Obstetrics and Gynecology, Vagelos College of Physicians and Surgeons, Columbia University, NY (C.C., K.K.).ORCID 0000-0002-0309-9777
Leslie A McClureDepartment of Epidemiology and Biostatistics, Dornsife School of Public Health, Drexel University, Philadelphia, PA (L.A.M.).
John BrockmanDepartment of Chemistry, University of Missouri, Columbia (J.B.).ORCID 0000-0001-7419-5558
Mary CushmanDepartment of Medicine, Larner College of Medicine at the University of Vermont, Burlington (M.C.).
Suzanne JuddDepartment of Biostatistics, School of Public Health, University of Alabama at Birmingham (S.J.).
Ka KaheDepartment of Obstetrics and Gynecology, Vagelos College of Physicians and Surgeons, Columbia University, NY (C.C., K.K.).ORCID 0000-0001-5078-2010
Columbia University · USDrexel University · USIndiana University · USUniversity of Alabama at Birmingham · USUniversity of Missouri · USUniversity of Vermont · US

Funding

VCID and Stroke in a Bi-racial National CohortU01NS041588 · NINDS · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI CUSHMAN, MARY, HOWARD, GEORGE · 2002 to 2022
$96.0M
Trace element levels and risk of strokeR01ES021735 · NIEHS · TRUSTEES OF INDIANA UNIVERSITY · PI KAHE, KA, MCCLURE, LESLIE AIN · 2012 to 2016
$2.3M
NIEHS NIH HHS R01 ES021735NINDS NIH HHS U01 NS041588
6 · The paper itself

Abstract

background and purposeDespite zinc's role as an antioxidant and anti-inflammatory agent, prospective studies relating zinc levels to ischemic stroke risk are lacking. To examine the association between serum zinc levels and incidence of ischemic stroke in a US population.

methodsUsing a case-cohort study nested within the Reasons for Geographic and Racial Differences in Stroke cohort, participants were randomly selected from the Reasons for Geographic and Racial Differences in Stroke cohort to generate a sub-cohort (n=2346). All incident ischemic stroke cases as of September 2012 (n=660) were included, with 62 incident cases overlapping in the sub-cohort. Serum zinc levels were measured at baseline. Barlow-weighted Cox's proportional hazards regression models were used to calculate multivariable-adjusted hazard ratios and the corresponding 95% CI of ischemic stroke by serum zinc levels.

resultsThe median zinc level for the sub-cohort was 121.19 µg/dL (interquartile range, 104.86-140.39 µg/dL). Serum zinc levels were inversely associated with incidence of ischemic stroke after adjustment for potential confounders (quartile 4 versus quartile 1: hazard ratio, 0.78 [95% CI, 0.61-0.98],

conclusionsSerum zinc concentration was inversely associated with incidence of ischemic stroke, especially among women, indicating that low zinc levels may be a risk factor for ischemic stroke.

Indexed as

AgedCase-Control StudiesCohort StudiesFemaleHumansIncidenceIschemic StrokeMaleMiddle AgedRisk FactorsZincZincantioxidantatherosclerosishomeostasisrisk factor

Identifiers

PMID34412513
PMCPMC8608709
OpenAlexW3195145915

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.