Evidence map›Paper›PMID 37940163›Full record

ArticleBMJ open2023

Lifecourse investigation of the cumulative impact of adversity on cognitive function in old age and the mediating role of mental health: longitudinal birth cohort study.

Yiwen Liu, Praveetha Patalay, Jean Stafford, Jonathan M Schott, Marcus Richards

Open access · goldAbstract read
In one paragraph

Article in BMJ open, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.9field-weighted citation impact, top 21% 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

4 citing papers in PubMed, 2 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

5 authors at 2 institutions in 1 country.

Yiwen LiuMRC Unit for Lifelong Health and Ageing, University College London, London, UK eva.liu@ucl.ac.uk.ORCID 0000-0002-2734-0182
Praveetha PatalayMRC Unit for Lifelong Health and Ageing, University College London, London, UK.ORCID 0000-0002-5341-3461
Jean StaffordMRC Unit for Lifelong Health and Ageing, University College London, London, UK.
Jonathan M SchottDementia Research Centre, UCL Queen Square Institute of Neurology, University College London, London, UK.
Marcus RichardsMRC Unit for Lifelong Health and Ageing, University College London, London, UK.
MRC Unit for Lifelong Health and Ageing · GBUK Dementia Research Institute · GB

Funding

British Heart Foundation PG/17/90/33415Medical Research Council MC_UU_00019/1Medical Research Council MC_UU_00019/3Medical Research Council MC_UU_12019/3
6 · The paper itself

Abstract

objectiveTo investigate the accumulation of adversities (duration of exposure to any, economic, psychosocial) across the lifecourse (birth to 63 years) on cognitive function in older age, and the mediating role of mental health.

designNational birth cohort study.

settingGreat Britain.

participants5362 singleton births within marriage in England, Wales and Scotland born within 1 week of March 1946, of which 2131 completed at least 1 cognitive assessment.

main outcome measuresCognitive assessments included the Addenbrooke's Cognitive Examination-III, as a measure of cognitive state, processing speed (timed-letter search task), and verbal memory (word learning task) at 69 years. Scores were standardised to the analytical sample. Mental health at 60-64 years was assessed using the 28-item General Health Questionnaire, with scores standardised to the analytical sample.

resultsAfter adjusting for sex, increased duration of exposure to any adversity was associated with decreased performance on cognitive state (β=-0.39; 95% CI -0.59 to -0.20) and verbal memory (β=-0.45; 95% CI -0.63 to -0.27) at 69 years, although these effects were attenuated after adjusting for further covariates (childhood cognition and emotional problems, educational attainment). Analyses by type of adversity revealed stronger associations from economic adversity to verbal memory (β=-0.54; 95% CI -0.70 to -0.39), with a small effect remaining even after adjusting for all covariates (β=-0.18; 95% CI -0.32 to -0.03), and weaker associations from psychosocial adversity. Causal mediation analyses found that mental health mediated all associations between duration of exposure to adversity (any, economic, psychosocial) and cognitive function, with around 15% of the total effect of economic adversity on verbal memory attributable to mental health.

conclusionsImproving mental health among older adults has the potential to reduce cognitive impairments, as well as mitigate against some of the effect of lifecourse accumulation of adversity on cognitive performance in older age.

Indexed as

Cognitive DysfunctionMental HealthAgedChildCognitionCohort StudiesHumansLongitudinal StudiesUnited Kingdomagingdementiaepidemiologymental health

Identifiers

PMID37940163
PMCPMC10632868
OpenAlexW4388501352

What OpenQuestion holds

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LicenceCC BY
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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.