UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000057317
Receipt number R000064247
Scientific Title A systematic review and meta-analysis of the relationship between green spaces and cognitive function
Date of disclosure of the study information 2025/03/19
Last modified on 2025/09/17 20:00:47

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Basic information

Public title

A systematic review and meta-analysis of the relationship between green spaces and cognitive function

Acronym

A systematic review and meta-analysis of the relationship between green spaces and cognitive function

Scientific Title

A systematic review and meta-analysis of the relationship between green spaces and cognitive function

Scientific Title:Acronym

A systematic review and meta-analysis of the relationship between green spaces and cognitive function

Region

Japan


Condition

Condition

Dementia, Mild Cognitive Impairment, Alzheimer's disease

Classification by specialty

Geriatrics Psychiatry

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To systematically review the results of existing research on the relationship between green space and cognitive function, and to identify implications for future research and practice.

Basic objectives2

Others

Basic objectives -Others

To systematically summarize studies from different countries on the association between green space and cognitive function through systematic reviews and meta-analyses

Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Dementia incidence, suspected dementia, and cognitive function score

Key secondary outcomes



Base

Study type

Others,meta-analysis etc


Study design

Basic design


Randomization


Randomization unit


Blinding


Control


Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms


Purpose of intervention


Type of intervention


Interventions/Control_1


Interventions/Control_2


Interventions/Control_3


Interventions/Control_4


Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit


Not applicable

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

(1) Original articles written in English
(2) Primary outcomes are dementia incidence, suspected dementia, or cognitive function scores
(3) studies on the effects of green spaces

Key exclusion criteria

(1) A study focusing on a specific population, such as patients with a particular diseases, or individuals in a specific occupation.
(2) A case study or qualitative research
(3) A simulation study

Target sample size



Research contact person

Name of lead principal investigator

1st name Kazuhiro
Middle name
Last name Sumitomo

Organization

Tohoku Medical and Pharmaceutical University Wakabayashi Hospital

Division name

Department of Community Medicine 

Zip code

984-8560

Address

2-29-1 Yamatomachi, Wakabayashi-ku, Sendai 984-8560, JAPAN

TEL

022-236-5911

Email

ksumitom@gmail.com


Public contact

Name of contact person

1st name Yui
Middle name
Last name Ohtsu

Organization

Saitama University

Division name

Graduate School of Humanities and Social Sciences

Zip code

338-8570

Address

255 Shimo-Okubo, Sakura-ku, Saitama 338-8570, JAPAN

TEL

048-858-3650

Homepage URL


Email

ohtsu@mail.saitama-u.ac.jp


Sponsor or person

Institute

Tohoku Medical and Pharmaceutical University Wakabayashi Hospital

Institute

Department

Personal name

Kazuhiro Sumitomo


Funding Source

Organization

Japan Society for Dementia Prevention

Organization

Division

Category of Funding Organization

Other

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

N/A

Address

N/A

Tel

N/A

Email

N/A


Secondary IDs

Secondary IDs

NO

Study ID_1


Org. issuing International ID_1


Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions



Other administrative information

Date of disclosure of the study information

2025 Year 03 Month 19 Day


Related information

URL releasing protocol


Publication of results

Unpublished


Result

URL related to results and publications


Number of participants that the trial has enrolled


Results


Results date posted


Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics


Participant flow


Adverse events


Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Completed

Date of protocol fixation

2025 Year 02 Month 12 Day

Date of IRB

2025 Year 02 Month 12 Day

Anticipated trial start date

2025 Year 03 Month 24 Day

Last follow-up date

2025 Year 03 Month 24 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

We use PubMed, Web of Science and Scopus for literature searches.

The search query is as follows (example from PubMed):
("Dementia"[MeSH Terms] OR "Alzheimer Disease"[MeSH Terms] OR "parkinson disease, secondary"[MeSH Terms] OR "Parkinson Disease"[MeSH Terms] OR "Parkinsonian Disorders"[MeSH Terms] OR "Dementia"[MeSH Terms] OR "Dementia"[All Fields] OR "dementias"[All Fields] OR "dementia s"[All Fields] OR "Neurocognitive Disorders"[MeSH Terms] OR "Cognitive Dysfunction"[Mesh] OR "Memory Disorders"[Mesh] OR "Cognitive impairment" [All Fields]) AND (NDVI[All Fields] OR "land use"[All Fields] OR "land cover"[All Fields] OR "green index"[All Fields] OR "greenness"[All Fields] OR "green space"[All Fields] OR "green spaces"[All Fields] OR "greenspace"[All Fields] OR "greenspaces"[All Fields] OR "canopied"[All Fields] OR "canopies"[All Fields] OR "canopy"[All Fields] OR "tree canopy"[All Fields] OR "parks, recreational"[MeSH Terms] OR "urban park"[All Fields] OR "urban parks"[All Fields] OR "urban tree"[All Fields] OR "vegetation"[All Fields] OR "urban green"[All Fields] OR "Forests" [MeSH Terms] OR "Wood" [MeSH Terms] OR "Trees"[MeSH Terms] OR "phytoncide" [Supplementary Concept] OR ("Ecosystem"[Mesh] NOT("Biota"[Mesh])) OR "natural environment" [All Fields] OR "neighborhood environment" [All Fields] OR "greenery"[All Fields] OR "natural space" [All Fields] OR "open space" [All Fields])


Management information

Registered date

2025 Year 03 Month 17 Day

Last modified on

2025 Year 09 Month 17 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000064247