Evidence map›Paper›PMID 32951189›Full record

SynthesisAging clinical and experimental research2021

Green space exposure on mortality and cardiovascular outcomes in older adults: a systematic review and meta-analysis of observational studies.

Yin Yuan, Feng Huang, Fan Lin, Pengyi Zhu, Pengli Zhu

Abstract readMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis in Aging clinical and experimental research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed, 6 pooled it
–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

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

43 citing papers in PubMed, 6 syntheses or guidelines pooled it.

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  18. Impact of Different Greenspace Metrics on Cardiovascular Disease Incidence in Urban Settings: A Comparative Analysis.Journal of urban health : bulletin of the New York Academy of Medicine · 2025
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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.

Yin Yuan *The Shengli Clinical Medical College, Fujian Medical University, Fuzhou, China.
Feng Huang *The Shengli Clinical Medical College, Fujian Medical University, Fuzhou, China.
Fan LinThe Shengli Clinical Medical College, Fujian Medical University, Fuzhou, China.
Pengyi ZhuSchool of Economics, Fujian Normal University, Fuzhou, China. 962383745@qq.com.
Pengli ZhuThe Shengli Clinical Medical College, Fujian Medical University, Fuzhou, China. zpl7755@hotmail.com.ORCID http://orcid.org/0000-0001-9619-0723

Funding

Fujian Major Projects on Science and Technology for Social Development 2016YZ0001Fujian Science and Technology Innovation Joint Major project 2019Y9027
6 · The paper itself

Abstract

backgroundWith the launch of the "Global Age-Friendly Cities project", increasing emphasis has been placed on the effects of green spaces on health in the elderly. The previous literature has shown that green spaces are beneficial to a range of health-related outcomes in adults. However, associations of greenness with mortality and cardiovascular outcomes are less certain, which may differ depending on the age class. This review aimed to synthesize current evidence from observational studies to assess relationships of green space exposure with mortality and cardiovascular outcomes in older individuals.

methodsFive databases were searched. Qualitative evaluation and meta-analyses of included studies were conducted. This review is registered with PROSPERO, CRD42020160366.

resultsOf the 8,143 records identified, we finally included 22 studies. In a narrative systematic review, we observed that the majority of studies showed reductions in the risk of all-cause mortality and total cardiovascular disease. Further meta-analyses which included eight cohort studies, indicated that greater greenness exposure (per 0.1 unit increase of normalized difference vegetation index (NDVI)) was associated with a reduced risk of all-cause mortality (pooled hazard ratios (HR) (95% confidence interval (CI) = 0.99 (0.97, 1.00)) and stroke mortality (pooled HR (95% CI) = 0.77 (0.59, 1.00)) in older individuals.

conclusionsThis review supports increasing green space exposure in terms of the prevention of death and cardiovascular outcomes in older individuals. Effective measures to increase or preserve greenspaces should therefore be considered as important public health interventions.

Indexed as

Cardiovascular DiseasesStrokeAgedCitiesCohort StudiesHumansObservational Studies as TopicParks, RecreationalCardiovascular diseaseGreen spaceMortalityOlder adults

Identifiers

PMID32951189

What OpenQuestion holds

Textmetadata
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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.