ReviewAgeing research reviews2021
Is personality associated with dementia risk? A meta-analytic investigation.
Review in Ageing research reviews, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 84 papers, 13 of them syntheses that pooled 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.
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.
Who cites it
84 citing papers in PubMed, 13 syntheses or guidelines pooled it, 108 citations in OpenAlex.
- Personality nuances and inflammation: A coordinated analysis of six samples.Psychoneuroendocrinology · 2026Pooled it
- Personality and mortality risk: A systematic review and meta-analysis of longitudinal data.Journal of personality and social psychology · 2026Pooled it
- Meta-analyses of personality change from the preclinical to the clinical stages of dementia.Ageing research reviews · 2025Pooled it
- Personality traits and polypharmacy: meta-analysis of five samples.Psychology & health · 2025Pooled it
- Life satisfaction and risk of dementia in older adults: findings from 15 European countries and meta-analysis.Age and ageing · 2025Pooled it
- Personality and Risk of Arthritis in Six Longitudinal Samples.The journals of gerontology. Series B, Psychological sciences and social sciences · 2024Pooled it
- Personality predictors of dementia diagnosis and neuropathological burden: An individual participant data meta-analysis.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024Pooled it
- Five-Factor Model Personality Traits and the Trajectory of Episodic Memory: Individual-Participant Meta-Analysis of 471,821 Memory Assessments from 120,640 Participants.The journals of gerontology. Series B, Psychological sciences and social sciences · 2023Pooled it
- Personality associations with lung function and dyspnea: Evidence from six studies.Respiratory medicine · 2023Pooled it
- Five-factor model personality traits and grip strength: Meta-analysis of seven studies.Journal of psychosomatic research · 2022Pooled it
- Personality and subjective age: Evidence from six samples.Psychology and aging · 2022Pooled it
- Personality Associations With Amyloid and Tau: Results From the Baltimore Longitudinal Study of Aging and Meta-analysis.Biological psychiatry · 2022Pooled it
- Neuroticism and Risk of Parkinson's Disease: A Meta-Analysis.Movement disorders : official journal of the Movement Disorder Society · 2021Pooled it
- Psychological characteristics and functional abilities in older adults with subjective cognitive complaints: A potential new target for early intervention.International psychogeriatrics · 2026Trial
- Mendelian randomization analysis of the causal relationship between allergic rhinitis and depression and underlying mediation mechanisms.The World Allergy Organization journal · 2026Article
- Abnormal FDG-PET Patterns and Amyloid Positivity Predict Personality Changes in Cognitively Preserved Individuals.Brain sciences · 2026Article
- Clinical patterns in social cognition & personality changes in progressive supranuclear palsy.Journal of neurology · 2026Article
- The relationship between public health emergencies and suicidal ideation: the mediating role of fear of missing out and the moderating role of conscientiousness.BMC psychology · 2026Article
- Association of the Big Five personality traits with cognitive decline: a 24-week multidomain intervention study.Frontiers in psychiatry · 2026Article
- Association between neuroticism and brain-wide structural outcomes: Mediation by vascular and mental conditions.Psychological medicine · 2025Article
24 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors at 2 institutions in 2 countries.
Funding
Abstract
This study provides a quantitative synthesis of the prospective associations between personality traits (neuroticism, extraversion, openness, agreeableness, conscientiousness) and the risk of incident Alzheimer's disease and related dementias. We conducted five separate meta-analyses with 8-12 samples (N = 30,036 to 33,054) that were identified through a systematic literature search following the MOOSE guidelines. Higher neuroticism (HR = 1.24, 95% CI [1.17, 1.31]) and lower conscientiousness (HR = 0.77, 95% CI [0.73, 0.81]) were associated with increased dementia risk, even after accounting for covariates such as depressive symptoms. Lower extraversion (HR = 0.92, 95% CI [0.86, 0.97]), openness (HR = 0.91, 95% CI [0.86, 0.96]), and agreeableness (HR = 0.90, 95% CI [0.83, 0.98]) were also associated with increased risk, but these associations were less robust and not significant in fully adjusted models. No evidence of publication bias was found. The strength of associations was unrelated to publication year (i.e., no evidence of winner's curse). Meta-regressions indicated consistent effects for neuroticism, openness, and conscientiousness across methods to assess dementia, dementia type, follow-up length, sample age, minority, country, and personality measures. The association of extraversion and agreeableness varied by country. Our findings indicate robust associations of neuroticism and conscientiousness with dementia risk.
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Registered trials
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.