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Reliability of a Food Frequency Questionnaire in the Assessment of Dietary Intake Including FODMAPs in Different Populations, and Relationship With IBS Symptoms and the Degree of Self-assessed Physical Activity

NCT ID: NCT05293769

Last Updated: 2025-12-18

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Total Enrollment

400 participants

Study Classification

OBSERVATIONAL

Study Start Date

2022-10-15

Study Completion Date

2030-12-31

Brief Summary

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During an online assessment participants will fill in questionnaires evaluating demographic data, psychological variables, the degree of self-assessed physical activity and symptoms of irritable bowel. Dietary intake will be assessed by a newly developed food frequency questionnaire (FFQ) and a 4 days food diary. In order to validate the FFQ in different populations, participants will be recruited from university students, staff of UZ Brussel and VUB, and from the community by advertisement (including social media). IBS patients will be recruited from the gastro-enterology outpatient clinic.

Detailed Description

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Conditions

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Irritable Bowel Syndrome

Study Design

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Observational Model Type

CASE_CONTROL

Study Time Perspective

PROSPECTIVE

Study Groups

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IBS - arm

questionnaire

Intervention Type OTHER

questionnaire will be filled in by all participants

healthy - arm

questionnaire

Intervention Type OTHER

questionnaire will be filled in by all participants

Interventions

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questionnaire

questionnaire will be filled in by all participants

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* 18 - 65 years;
* Provide written informed consent;
* Living in Belgium

Exclusion Criteria

* Diet \< 8 weeks prior to participation;
* Known or suspected eating disorder;
* Major psychiatric disorder;
* Known gastro-intestinal disease (IBS is allowed);
* Any malignancy in the past 3 years (basocellular carcinoma is allowed);
* Chemotherapy in the past 6 months;
* Infectious gastro-enteritis in the past 6 months (infectious gastro-enteritis defined as the concurrent presence of one of the following signs during 2 or more consecutive days: fever, vomiting, sudden onset of diarrhea, hospitalization because of these symptoms);
* Previous abdominal surgery (appendectomy and cholecystectomy are allowed);
* Alcohol abuse defined as \> 14 U per week;
* Use of illicit drugs;
* Intake of drugs with known major gastro-intestinal side effects.
* Initiation of neuromodulators less than 3 months before participation. Neuromodulators are allowed when taken at a stable dose for at least 3 months;
* Pregnancy.
Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Universitair Ziekenhuis Brussel

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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UZ Brussel

Jette, Brussels Capital, Belgium

Site Status RECRUITING

Countries

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Belgium

Central Contacts

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Sébastien Kindt

Role: CONTACT

Phone: +32 2 477

Email: [email protected]

Virgini Van Buggenhout

Role: CONTACT

Phone: +32 2 477

Email: [email protected]

Facility Contacts

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Sébastien Kindt

Role: primary

Other Identifiers

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FaST

Identifier Type: -

Identifier Source: org_study_id