Evidence map›Paper›PMID 41857591›Full record

ArticleBMC research notes2026

Baseline epigenetic clock measures in the Northern Ireland Cohort for the Longitudinal Study of Ageing (NICOLA).

Claire Hill, Claire Potter, Laura Smyth, Jill Kilner, Angela Scott, Charlotte Neville, Frank Kee, Bernadette McGuinness, Amy Jayne McKnight

Abstract read
In one paragraph

Article in BMC research notes, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
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

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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

1 citing paper in PubMed.

  1. Article
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

9 authors.

Claire HillCentre for Public Health, Queen's University Belfast, Belfast, UK.
Claire PotterCentre for Public Health, Queen's University Belfast, Belfast, UK.
Laura SmythCentre for Public Health, Queen's University Belfast, Belfast, UK.
Jill KilnerCentre for Public Health, Queen's University Belfast, Belfast, UK.
Angela ScottCentre for Public Health, Queen's University Belfast, Belfast, UK.
Charlotte NevilleCentre for Public Health, Queen's University Belfast, Belfast, UK.
Frank KeeCentre for Public Health, Queen's University Belfast, Belfast, UK.
Bernadette McGuinnessCentre for Public Health, Queen's University Belfast, Belfast, UK.
Amy Jayne McKnightCentre for Public Health, Queen's University Belfast, Belfast, UK. a.j.mcknight@qub.ac.uk.

Funding

Social Circumstances and Epigenomics Promoting Health in Three CountriesR01AG068937 · NIA · UNIVERSITY OF SOUTHERN CALIFORNIA · PI CRIMMINS, EILEEN M, FAUL, JESSICA · 2020 to 2025
$2.9M
Economic and Social Research Council ES/L008459/1NIH HHS R01AG068937Northern Ireland Health and Social Care Research and Development Office STL/5569/19Science Foundation Ireland and the Department for the Economy, Northern Ireland US partnership award 15/IA/3152UK Research and Innovation MC_PC_20026Vivensa Foundation PF2502\5Welcome Trust/ Health Research Board Ireland's Irish Clinical Academic Training (ICAT) Fellowship 203930/B/16/Z
6 · The paper itself

Abstract

objectivesDNA methylation (DNAm) can change dynamically in response to intrinsic or external exposures. Characteristic methylation profiles are associated with accelerated biological ageing and poorer health outcomes. CpG methylation levels for individuals within the Northern Ireland Cohort for the Longitudinal Study of Ageing (NICOLA) were previously generated from baseline blood-derived DNA typed on the Infinium MethylationEPIC array. Harnessing this methylation data, epigenetic clock measures were determined, adjusting for chronological age and white blood cell count (CD8T, CD4T, Natural killer, B-cell, Monocytes and Granulocytes). DATA DESCRIPTION: The NICOLA study was designed to be representative of the Northern Ireland population at Wave 1 and involved the recruitment of 8,283 people from across Northern Ireland. Participants over the age of 50 were recruited. Other household members (spouses/partners) were allowed to take part, even if they were under the age of 50. 2.3% of participants were under the age of 50. Around 50% of participants were aged between 50 and 65, and 10% of participants were over the age of 80 years. This dataset includes epigenetic clock measures for a subset of 1,870 (48% male) participants within the NICOLA cohort, with a mean age of 64.1 ± 9.37 years. The following 10 epigenetic clocks were generated: (± PC)PhenoAge, (± PC)GrimAge, (± PC)Horvath1, (± PC)Hannum, PCDNAmTL and DunedinPACE. ±PC represents the presence or absence of principal component adjustment. This document describes NICOLA's epigenetic clock dataset, which is ~ 2.5Gb in size.

Indexed as

AgingDNA MethylationEpigenesis, GeneticAgedAged, 80 and overCpG IslandsFemaleHumansLongitudinal StudiesMaleMiddle AgedNorthern IrelandAgeingAssociationEPICEpigeneticEpigenetic clockMethylationNICOLA

Identifiers

PMID41857591
PMCPMC13123219

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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.