UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000038157
Receipt number R000043494
Scientific Title Association between the neighborhood food environment and dietary variety in Japanese rural community-dwelling older adults: a cross-sectional study
Date of disclosure of the study information 2019/10/01
Last modified on 2021/02/09 14:14:43

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Basic information

Public title

Association between the neighborhood food environment and dietary variety in Japanese rural community-dwelling older adults: a cross-sectional study

Acronym

Association between the neighborhood food environment and dietary variety in Japanese rural community-dwelling older adults: a cross-sectional study

Scientific Title

Association between the neighborhood food environment and dietary variety in Japanese rural community-dwelling older adults: a cross-sectional study

Scientific Title:Acronym

Association between the neighborhood food environment and dietary variety in Japanese rural community-dwelling older adults: a cross-sectional study

Region

Japan


Condition

Condition

Dietary variety

Classification by specialty

Not applicable

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To clarify the relationship between neighborhood food environment and dietary variety in Japanese rural community-dwelling elderly.

Basic objectives2

Others

Basic objectives -Others

Observational study aimed to examine relationship.

Trial characteristics_1

Confirmatory

Trial characteristics_2

Others

Developmental phase

Not applicable


Assessment

Primary outcomes

Dietary variety assessed by dietary variety score (DVS).
DVS is calculated from the intake frequency of 10 food item (meat, fish/shellfish, eggs, milk, soybean products, green/yellow vegetables, potatoes, fruit, seaweed, and fats/ oils) (Kumagai, Nihon Koshu Eisei Zasshi, 2003 (in Japanese)).

Key secondary outcomes

Frequency of intake for each of the 10 food groups used to evaluate DVS.


Base

Study type

Observational


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

65 years-old <=

Age-upper limit

82 years-old >=

Gender

Male and Female

Key inclusion criteria

The participants of this study were who participated "Effectiveness of community-wide promotion of physical activity in middle-aged and older adults: a dissemination study"(UMIN000024682)* who were 65 years or more and responded to the survey of the second year of intervention (November 2018).
* This intervention study is a community-wide intervention for the Uunnan city, and the evaluation is conducted by mail survey of 7,000 people randomly selected from all citizens aged 40 to 79 years. The participants of the second-year survey were those who responded to the baseline survey.

Key exclusion criteria

People who need someone's assistance to go outside.

Target sample size

1650


Research contact person

Name of lead principal investigator

1st name Tatsunosuke
Middle name
Last name Gomi

Organization

Physical Education and Medicine Research Center UNNAN

Division name

Research Division

Zip code

699-1105

Address

328 Uji, Kamo Town, Unnan City, Shimane Prefecture, 699-1105, Japan

TEL

0854-49-9050

Email

challenge533.0701@gmail.com


Public contact

Name of contact person

1st name Tatsunosuke
Middle name
Last name Gomi

Organization

Physical Education and Medicine Research Center UNNAN

Division name

Research Division

Zip code

699-1105

Address

328 Uji, Kamo Town, Unnan City, Shimane Prefecture, 699-1105, Japan

TEL

0854-49-9050

Homepage URL


Email

shintai@bs.kkm.ne.jp


Sponsor or person

Institute

Physical Education and Medicine Research Center UNNAN

Institute

Department

Personal name



Funding Source

Organization

Japanese Ministry of Education, Culture, Sports, Science and Technology

Organization

Division

Category of Funding Organization

Japanese Governmental office

Nationality of Funding Organization

Japan


Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Research Ethics Committee of the Physical Education and Medicine Research Center UNNAN

Address

328 Uji, Kamo Town, Unnan City, Shimane Prefecture, 699-1105, Japan

Tel

0854-49-9050

Email

shintai@bs.kkm.ne.jp


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

2019 Year 10 Month 01 Day


Related information

URL releasing protocol


Publication of results

Published


Result

URL related to results and publications

https://www.jstage.jst.go.jp/article/jea/advpub/0/advpub_JE20200415/_article/-char/en

Number of participants that the trial has enrolled

1103

Results

In multivariate analysis by distance to nearest food store, there was a significantly higher prevalence ratio (PR) (1.15, 95% CI, 1.01-1.32) for low DVS only in Q4 (1,784 m-7,780 m). There was also a significant trend (p for trend = 0.033) between low DVS and distance to nearest food store. The results were similar for analyses in the crude model.

Results date posted

2021 Year 02 Month 09 Day

Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics


Participant flow

2,110 men and women who were age 65 to 81 years in 2018 were invited to participate in the present study. Of those invited, 1,763 (53.3%) consented to participate; however, 69 respondents were subsequently excluded because they met the exclusion criteria. Another 591 respondents with uncertain or missing answers to the questions were excluded. Consequently, data from 1,103 participants were analyzed.

Adverse events


Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Main results already published

Date of protocol fixation

2019 Year 06 Month 26 Day

Date of IRB

2019 Year 07 Month 08 Day

Anticipated trial start date

2019 Year 10 Month 01 Day

Last follow-up date

2020 Year 03 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded

2020 Year 08 Month 20 Day


Other

Other related information

Authors and Contributors: Mr.Tatsunosuke Gomi, Dr. Jun Kitayuguchi, Prof. Hiroharu Kamioka, Mr. Kenta Okuyama, Dr.Masamitsu Kamada, Dr.Shigeru Inoue, Dr. Yoshiteru Mutoh. TG (steering author) and JK conceive the study and will perform the statistical analyses, MK and SI will provide expert advice on research and analysis. KO will perform data analyses using Geographic information system (GIS), HK and YM will conduct interpretation of data.
Participants are residents of Unnan City and over 65 years old. Neighborhood food environment will be quantified using GIS and be used as an exposure factor. Finding from the exposure group are compared with those from a better neighborhood food environment group. We will analyze the relationship between neighborhood food environment and dietary variety as an outcome.
This study is a cross-sectional study.
As the first subanalysis, we will analyze the relationship between subjective food accessibility and dietary variety.
As a second subanalysis, we will analyze the relationship between the density of grocery stores in the neighborhood and dietary variety.
Subgroup analysis will be performed for men and women, driving status, and residence patterns.
As a sensitivity analysis, we investigate the quantitative response between distant food environment and dietary variety score.


Management information

Registered date

2019 Year 09 Month 30 Day

Last modified on

2021 Year 02 Month 09 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000043494


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name