UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000059265
Receipt number R000066919
Scientific Title Cohort Study in Okaya City, Nagano Prefecture: Relationship between Maternal and Child Health Information and Mental Health Status in the Sixth and Ninth Grades
Date of disclosure of the study information 2025/10/05
Last modified on 2025/10/02 10:38:16

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Basic information

Public title

Cohort Study in Okaya City, Nagano Prefecture: Relationship between Maternal and Child Health Information and Mental Health Status in the Sixth and Ninth Grades

Acronym

Okaya Cohort Study: Relationship between Maternal and Child Health Information and Children's Mental Health Status

Scientific Title

Cohort Study in Okaya City, Nagano Prefecture: Relationship between Maternal and Child Health Information and Mental Health Status in the Sixth and Ninth Grades

Scientific Title:Acronym

Okaya Cohort Study: Relationship between Maternal and Child Health Information and Children's Mental Health Status

Region

Japan


Condition

Condition

Nonclinical population

Classification by specialty

Adult Child

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To determine the association between children's perinatal risk, maternal postpartum depression, child characteristics at the infant health examination, indicators of maternal parenting stress, and preschool diagnostic information and mental health problems identified at sixth grade and ninth grade.

Basic objectives2

Others

Basic objectives -Others

Search for information that contributes to the early detection of mental health problems

Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Children's Strengths and Difficulties Questionnaire, Ten-item Internet Gaming Disorder Test (IGDT-10) Japanese version, Screen Time Survey

Key secondary outcomes



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

11 years-old <=

Age-upper limit

15 years-old >=

Gender

Male and Female

Key inclusion criteria

1. Individuals born between April 2, 2010, and April 1, 2017, and their guardians.
2. Individuals enrolled in the sixth grade of elementary school or the sixth grade of junior high school within Okaya City at the time of the survey, and their guardians.
3. Participants who responded to the questionnaire and those included in the studies "Early Detection and Support for Children's Mental Health Issues Using Maternal and Child Health Information: A Comprehensive Cohort Study in Okaya City, Nagano Prefecture" (Approval Numbers 3297, 3614, 3905, 4324, 5603) and "A Comprehensive Cohort Study in Okaya City, Nagano Prefecture: Relationship between Maternal and Child Health Information and Mental Health Status in Sixth Grade" (Approval Numbers 5129).

Key exclusion criteria

Individuals deemed unsuitable as subjects by the principal investigator

Target sample size

2500


Research contact person

Name of lead principal investigator

1st name Daimei
Middle name
Last name Sasayama

Organization

Shinshu University

Division name

Department of Psychiatry, School of Medicine

Zip code

390-8621

Address

3-1-1 Asahi, Matsumoto, Nagano

TEL

0263372638

Email

sasayama@shinshu-u.ac.jp


Public contact

Name of contact person

1st name Daimei
Middle name
Last name Sasayama

Organization

Shinshu University

Division name

Department of Psychiatry, School of Medicine

Zip code

390-8621

Address

3-1-1 Asahi, Matsumoto, Nagano

TEL

0263372638

Homepage URL


Email

sasayama@shinshu-u.ac.jp


Sponsor or person

Institute

Shinshu University

Institute

Department

Personal name

Daimei Sasayama


Funding Source

Organization

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

Shinshu University School of Medicine Biological and Medical Research Ethics Committee

Address

3-1-1 Asahi, Matsumoto, Nagano

Tel

0263-37-3099

Email

mdrinri@shinshu-u.ac.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

2025 Year 10 Month 05 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

Preinitiation

Date of protocol fixation

2025 Year 09 Month 24 Day

Date of IRB


Anticipated trial start date

2025 Year 11 Month 01 Day

Last follow-up date

2029 Year 02 Month 28 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

NA


Management information

Registered date

2025 Year 10 Month 02 Day

Last modified on

2025 Year 10 Month 02 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000066919