Evidence map›Paper›PMID 35172329›Full record

SynthesisThe journals of gerontology. Series A, Biological sciences and medical sciences2022

The Role of Epigenetic Clocks in Explaining Educational Inequalities in Mortality: A Multicohort Study and Meta-analysis.

Giovanni Fiorito, Sara Pedron, Carolina Ochoa-Rosales, Cathal McCrory, Silvia Polidoro, Yan Zhang, Pierre-Antoine Dugué, Scott Ratliff, Wei N Zhao, Gareth J McKay and 28 more

Open access · greenAbstract readMeta-Analysis
In one paragraph

Synthesis in The journals of gerontology. Series A, Biological sciences and medical sciences, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
2.4field-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

21 citing papers in PubMed, 1 synthesis or guideline pooled it, 28 citations in OpenAlex.

  1. Pooled it
  2. Observational
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Quantification of Epigenetic Aging in Public Health.Annual review of public health · 2025
    Review
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  13. Review
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  16. Epigenetic aging & embodying injustice: USmedRxiv : the preprint server for health sciences · 2023
    Article
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  18. Article
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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

38 authors at 17 institutions in 8 countries.

Giovanni FioritoDepartment of Biomedical Sciences, University of Sassari, Sassari, Italy.ORCID 0000-0002-7651-5452
Sara PedronInstitute of Health Economics and Health Care Management, Helmholtz Zentrum München, German Research Center for Environmental Health (GmbH), Munich, Germany.
Carolina Ochoa-RosalesDepartment of Epidemiology, Erasmus MC, Rotterdam, The Netherlands.
Cathal McCroryDepartment of Medical Gerontology, Trinity College Dublin, Dublin, Ireland.ORCID 0000-0001-6575-2367
Silvia PolidoroItalian Institute for Genomic Medicine (IIGM), Turin, Italy.
Yan ZhangDivision of Clinical Epidemiology and Aging Research, German Cancer Research Center (DKFZ), Munich, Germany.ORCID 0000-0001-9913-6490
Pierre-Antoine DuguéCancer Epidemiology Division, Cancer Council Victoria, Victoria, Australia.ORCID 0000-0003-2736-3023
Scott RatliffDepartment of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, Michigan, USA.
Wei N ZhaoDepartment of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, Michigan, USA.
Gareth J McKayCentre for Public Health, Queen's University Belfast, Belfast, Northern Ireland.ORCID 0000-0001-8197-6280
Giuseppe CostaEpidemiology Unit, Regional Health Service TO3, Grugliasco, Italy.
Maria Giuliana SolinasDepartment of Biomedical Sciences, University of Sassari, Sassari, Italy.
Kathleen Mullan HarrisDepartment of Sociology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA.
Rosario TuminoCancer Registry and Histopathology Department, Provincial Health Authority (ASP 7), Ragusa, Italy.ORCID 0000-0003-2666-414X
Sara GrioniEpidemiology and Prevention Unit, Fondazione IRCCS Istituto Nazionale dei Tumori di Milano, Milan, Italy.ORCID 0000-0002-5891-8426
Fulvio RicceriEpidemiology Unit, Regional Health Service TO3, Grugliasco, Italy.ORCID 0000-0001-8749-9737
Salvatore PanicoDipartimento di Medicina Clinica e Chirurgia, University of Naples Federico II, Naples, Italy.ORCID 0000-0002-5498-8312
Hermann BrennerDivision of Clinical Epidemiology and Aging Research, German Cancer Research Center (DKFZ), Munich, Germany.
Lars SchwettmannInstitute of Health Economics and Health Care Management, Helmholtz Zentrum München, German Research Center for Environmental Health (GmbH), Munich, Germany.
Melanie WaldenbergerResearch Unit Molecular Epidemiology, Institute of Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Munich, Germany.
Pamela R Matias-GarciaResearch Unit Molecular Epidemiology, Institute of Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Munich, Germany.
Annette PetersInstitute of Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health (GmbH), Munich, Germany.ORCID 0000-0001-6645-0985
Allison HodgeCancer Epidemiology Division, Cancer Council Victoria, Victoria, Australia.
Graham G GilesCancer Epidemiology Division, Cancer Council Victoria, Victoria, Australia.
Lauren L SchmitzRobert M. La Follette School of Public Affairs, University of Wisconsin-Madison, Madison, Wisconsin, USA.
Morgan LevineDepartment of Pathology, Yale University School of Medicine, New Haven, Connecticut, USA.
Jennifer A SmithCentre for Public Health, Queen's University Belfast, Belfast, Northern Ireland.ORCID 0000-0002-3575-5468
Yongmei LiuDivision of Cardiology, Department of Medicine, School of Medicine, Duke University, Durham, North Carolina, USA.
Frank KeeCentre for Public Health, Queen's University Belfast, Belfast, Northern Ireland.
Ian S YoungCentre for Public Health, Queen's University Belfast, Belfast, Northern Ireland.
Bernadette McGuinnessCentre for Public Health, Queen's University Belfast, Belfast, Northern Ireland.
Amy Jayne McKnightCentre for Public Health, Queen's University Belfast, Belfast, Northern Ireland.
Joyce van MeursDepartment of Internal Medicine, Erasmus MC, Rotterdam, The Netherlands.
Trudy VoortmanDepartment of Epidemiology, Erasmus MC, Rotterdam, The Netherlands.ORCID 0000-0003-2830-6813
Rose A KennyDepartment of Medical Gerontology, Trinity College Dublin, Dublin, Ireland.
Lifepath consortium
Paolo VineisMRC Centre for Environment and Health, School of Public Health, Imperial College London, London, UK.ORCID 0000-0001-8935-4566
Cristian CarmeliPopulation Health Laboratory, University of Fribourg, Fribourg, Switzerland.ORCID 0000-0002-1463-4587
Helmholtz Zentrum München · DEErasmus MC · NLThe University of Melbourne · AUUniversity of Michigan · USGerman Cancer Research Center · DETrinity College Dublin · IEUniversity of Sassari · ITUniversity of Turin · ITDuke University · USFondazione IRCCS Istituto Nazionale dei Tumori · ITItalian institute for Genomic Medicine · ITMRC Centre for Environment and HealthUniversity of Fribourg · CHUniversity of Naples Federico II · ITUniversity of North Carolina at Chapel Hill · USUniversity of Wisconsin–Madison · USYale University · US

Funding

A Social Epigenomic Approach to Health Disparities in Cardiovascular Risk FactorsR01HL141292 · NHLBI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI SMITH, JENNIFER ANN · 2018 to 2021
$2.9M
Life Course Determinants of Epigenetic Age Acceleration and Subsequent DementiaR00AG056599 · NIA · UNIVERSITY OF WISCONSIN-MADISON · PI SCHMITZ, LAUREN LUCIA · 2019 to 2021
$738k
Medical Research Council MC_PC_20026Medical Research Council MC_PC_22005Medical Research Council MR/S019669/1NHLBI NIH HHS R01 HL141292NIA NIH HHS R00 AG056599
6 · The paper itself

Abstract

Educational inequalities in all-cause mortality have been observed for decades. However, the underlying biological mechanisms are not well known. We aimed to assess the role of DNA methylation changes in blood captured by epigenetic clocks in explaining these inequalities. Data were from 8 prospective population-based cohort studies, representing 13 021 participants. First, educational inequalities and their portion explained by Horvath DNAmAge, Hannum DNAmAge, DNAmPhenoAge, and DNAmGrimAge epigenetic clocks were assessed in each cohort via counterfactual-based mediation models, on both absolute (hazard difference) and relative (hazard ratio) scales, and by sex. Second, estimates from each cohort were pooled through a random effect meta-analysis model. Men with low education had excess mortality from all causes of 57 deaths per 10 000 person-years (95% confidence interval [CI]: 38, 76) compared with their more advantaged counterparts. For women, the excess mortality was 4 deaths per 10 000 person-years (95% CI: -11, 19). On the relative scale, educational inequalities corresponded to hazard ratios of 1.33 (95% CI: 1.12, 1.57) for men and 1.15 (95% CI: 0.96, 1.37) for women. DNAmGrimAge accounted for the largest proportion, approximately 50%, of the educational inequalities for men, while the proportion was negligible for women. Most of this mediation was explained by differential effects of unhealthy lifestyles and morbidities of the World Health Organization (WHO) risk factors for premature mortality. These results support DNA methylation-based epigenetic aging as a signature of educational inequalities in life expectancy emphasizing the need for policies to address the unequal social distribution of these WHO risk factors.

Indexed as

Epigenesis, GeneticEpigenomicsEducational StatusFemaleHumansMaleMortalityProspective StudiesRisk FactorsSocioeconomic FactorsBiomarkersDNA methylationLongevitySocial inequalities

Identifiers

PMID35172329
PMCPMC10310990
OpenAlexW4213063573

What OpenQuestion holds

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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.