SynthesisCurrent environmental health reports2022
Is Greenness Associated with Dementia? A Systematic Review and Dose-Response Meta-analysis.
Synthesis in Current environmental health reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 4 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
29 citing papers in PubMed, 4 syntheses or guidelines pooled it, 42 citations in OpenAlex.
- Residential green spaces and neurodegenerative diseases in middle-aged and older adults: a systematic review and dose-response meta-analysis.Archives of public health = Archives belges de sante publique · 2026Pooled it
- Green spaces, blue spaces and human health: an updated umbrella review of epidemiological meta-analyses.Frontiers in public health · 2025Pooled it
- Credibility of the evidence on green space and human health: an overview of meta-analyses using evidence grading approaches.EBioMedicine · 2024Pooled it
- Environmental and lifestyle risk factors for early-onset dementia: a systematic review.Acta bio-medica : Atenei Parmensis · 2022Pooled it
- Exposome-wide association study and predictive risk score for incident Alzheimer's disease and related dementias.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026Article
- Practical considerations for characterization of the external exposome in Alzheimer's disease and related dementias cohorts.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026Article
- Neighborhood greenspace and brain imaging outcomes in older adults without dementia from three US Alzheimer's Disease Research Centers.Health & place · 2026Article
- Agricultural pesticide use and Alzheimer's disease dementia prevalence across US counties in a mixed supervised-unsupervised analysis.Scientific reports · 2026Article
- Urban greenspace and dementia: Measures, mechanisms, and methodological guidance.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026Review
- Green space exposure and risk of amyotrophic lateral sclerosis: a population-based case-control study in Northern Italy.Environmental health : a global access science source · 2026Article
- Midlife exposure to neighborhood greenness and later-life cognitive decline: The Multi-Ethnic Study of Atherosclerosis.Social psychiatry and psychiatric epidemiology · 2026Article
- Environmental Factors and Risk of Early-Onset Dementia: A Population-Based Case-Control Study.Neuroepidemiology · 2025Article
- Greenness and hospital admissions for cause specific mental disorders: multicountry time series study.BMJ (Clinical research ed.) · 2025Article
- Neighborhood disadvantage and subjective cognitive function among older Black women.Psychology and aging · 2025Article
- Living in a 20-min neighborhood and brain health and resilience in older adults: The Healthy Brain Initiative.Health & place · 2025Article
- Greenness modified the association of PMScientific reports · 2025Article
- Effects of ambient temperature on hospital admissions and mortality among older adults with and without dementia in South Korea.International journal of epidemiology · 2025Article
- Association of environmental exposome and cognitive function among older adults with and without preclinical Alzheimer's disease.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025Article
- EnvironMental Health: A Framework for an Emerging Field at the Intersection of the Environment and Mental Health Crises.GeoHealth · 2025Review
- A Review of Urban Planning Approaches to Reduce Air Pollution Exposures.Current environmental health reports · 2024Review
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
purpose of reviewWe assessed the relation between environmental greenness and risk of dementia and cognitive impairment, based on a systematic review and meta-analysis up to March 30, 2022, characterizing whenever possible the shape of the association using dose-response meta-analysis. RECENT
findingsTwelve studies were included in this review, either using normalized difference vegetation index (NDVI) or land use/cover (LU/LC) methodology to assess greenness. Comparing the highest versus lowest exposure categories of greenness assessed using the NDVI (6 studies) or LU/LC (6 studies), we found no association with dementia. Dose-response meta-analysis of the association between greenness measured by LU/LC and dementia, based on only 3 studies, indicated a U-shaped association, but estimates were imprecise. Our systematic review and meta-analysis provided some evidence of a slight inverse association between greenness and dementia at intermediate exposure levels, but not at high levels. Potential methodological limitations, such as exposure misclassification and unmeasured confounding, may have affected the results.
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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.