UMIN-CTR Clinical Trial
| Unique ID issued by UMIN | UMIN000059438 |
|---|---|
| Receipt number | R000067975 |
| Scientific Title | Additional analysis of the 2020 and 2023 National Survey on Gambling Disorder and Gambling-Related Problems: prevalence, gambling preferences, and gambling-related harms |
| Date of disclosure of the study information | 2025/10/20 |
| Last modified on | 2025/10/16 21:57:20 |
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Basic information
Public title
Additional analysis of the 2020 and 2023 National Survey on Gambling Addiction in Japan
Acronym
2020-2023 Japan National Survey on Gambling Addiction
Scientific Title
Additional analysis of the 2020 and 2023 National Survey on Gambling Disorder and Gambling-Related Problems: prevalence, gambling preferences, and gambling-related harms
Scientific Title:Acronym
Additional analysis of the 2020 and 2023 Survey on Gambling Disorder and Gambling-Related Problems
Region
| Japan |
Condition
Condition
People with gambling disorder, individuals suspected of having gambling disorder, and high-risk gamblers
Classification by specialty
| Psychiatry | Adult |
Classification by malignancy
Others
Genomic information
NO
Objectives
Narrative objectives1
In Japan, based on Article 23 of the Basic Act on Measures Against Gambling Addiction (Act No. 74 of 2018), nationwide surveys were conducted in fiscal years 2020 and 2023 to clarify the actual conditions of individuals suspected of having gambling disorder and the problems related to gambling.
This study aims to conduct additional analyses using data obtained from these two surveys to elucidate the prevalence of gambling disorder, gambling preferences among the general adult population, and the actual conditions of gambling-related harms in Japan.
Basic objectives2
Others
Basic objectives -Others
To analyze and examine the results of the two nationwide cross-sectional surveys conducted in 2020 and 2023 using the same methodology, in order to obtain baseline data for Japan prior to the opening of casino resorts scheduled for 2030.
This study also aims to provide scientific evidence that will contribute to the development of policies for the prevention of gambling disorder and the reduction of gambling-related harms.
Trial characteristics_1
Exploratory
Trial characteristics_2
Explanatory
Developmental phase
Not applicable
Assessment
Primary outcomes
Prevalence of gambling disorder assessed by the Japanese version of the Problem Gambling Severity Index (PGSI).
Key secondary outcomes
A) Gambling preferences among the general adult population:
Types of gambling experienced during the past 12 months (e.g., pachinko/pachislot, horse racing, bicycle racing, motorboat racing, auto racing, lotteries, sports lotteries such as toto, and overseas casino gambling).
B) Gambling-related harms:
Financial harms: presence of debt due to gambling, experience of bankruptcy.
Relationship harms: family conflict, deterioration of marital relationships, experience of divorce.
Health-related harms: psychological distress (Kessler-6 score), presence of suicidal ideation.
Employment/Education-related harms: impact on work, presence of unemployment.
Legal harms: criminal problems or legal troubles (none reported).
Protective factors against gambling-related harms: presence or absence of consultation/help-seeking behavior related to gambling disorder or gambling-related problems.
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
| 18 | years-old | <= |
Age-upper limit
| 75 | years-old | > |
Gender
Male and Female
Key inclusion criteria
Participants were selected using a two-stage stratified random sampling method from individuals holding Japanese nationality and registered as residents in Japan.
Key exclusion criteria
None
Target sample size
9000
Research contact person
Name of lead principal investigator
| 1st name | Sachio |
| Middle name | |
| Last name | Matsushita |
Organization
National Hospital Organization, Kurihama Medical and Addicition Center
Division name
Department of Clinical Research
Zip code
2390841
Address
5-3-1, Nobi,Yokosuka, Kanagawa, Japan
TEL
0468481550
sachio-m@wa2.so-net.ne.jp
Public contact
Name of contact person
| 1st name | Chie |
| Middle name | |
| Last name | Nitta |
Organization
National Hospital Organization, Kurihama Medical and Addicition Center
Division name
Department of Clinical Research
Zip code
2390841
Address
5-3-1, Nobi,Yokosuka, Kanagawa, Japan
TEL
09072635604
Homepage URL
sevenseas00lp1049@yahoo.co.jp
Sponsor or person
Institute
National Hospital Organization, Kurihama Medical and Addicition Center
Institute
Department
Personal name
Funding Source
Organization
Ministry of Health, Labour and Welfare
Organization
Division
Category of Funding Organization
Japanese Governmental office
Nationality of Funding Organization
Other related organizations
Co-sponsor
Name of secondary funder(s)
IRB Contact (For public release)
Organization
Ethics Committee of the National Hospital Organization, Kurihama Medical and Addiction Center
Address
5-3-1, Nobi, Yokosuka, Kanagawa, Japan
Tel
0468481550
None
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 | 10 | Month | 20 | Day |
Related information
URL releasing protocol
Not opend
Publication of results
Unpublished
Result
URL related to results and publications
https://kurihama.hosp.go.jp/about/information/article/2024-10-28.html
Number of participants that the trial has enrolled
17121
Results
The estimated prevalence of individuals suspected of having gambling disorder in Japan, based on PGSI scores, was 1.6% (95% CI 1.4-1.9) in the 2020 survey and 1.7% (95% CI 1.4-1.9) in the 2023 survey.
Results date posted
| 2025 | Year | 10 | Month | 16 | Day |
Results Delayed
Results Delay Reason
Date of the first journal publication of results
Baseline Characteristics
2020 survey: Men 48.1%, mean age 50.9 years; Women 51.9%, mean age 48.6 years.N8223
2023 survey: Men 47.2%, mean age 51.0 years; Women 52.8%, mean age 49.2 years.N8898
Participant flow
None
Adverse events
None
Outcome measures
See; Resuts
Plan to share IPD
IPD sharing Plan description
Progress
Recruitment status
Completed
Date of protocol fixation
| 2023 | Year | 09 | Month | 08 | Day |
Date of IRB
| 2023 | Year | 09 | Month | 08 | Day |
Anticipated trial start date
| 2023 | Year | 10 | Month | 22 | Day |
Last follow-up date
| 2023 | Year | 12 | Month | 16 | Day |
Date of closure to data entry
Date trial data considered complete
Date analysis concluded
Other
Other related information
The reports for 2020 and 2023 have been published and are available on the official website.
https://www.ncasa-japan.jp/docs/research-report
Details of the observational study:
This study is a cross-sectional survey based on random sampling from the Basic Resident Register and is not a longitudinal study.
Management information
Registered date
| 2025 | Year | 10 | Month | 16 | Day |
Last modified on
| 2025 | Year | 10 | Month | 16 | Day |
Link to view the page
Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000067975
