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

NCT05293769 | Recruiting

• 1 other identifier: FaST
• Study Type: observational
• Target: 400
• Locations: 1 country
• Sites: 1

Brief Summary

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.

Conditions

Irritable Bowel Syndrome

Outcome Measures

Primary Outcomes (1)

• To validate the newly developed food frequency questionnaire against the standard 4-day food diary across different populations

  2 years

Secondary Outcomes (3)

• Comparison of dietary and FODMAP intake in IBS vs. non-IBS patients in different populations

  2 years

• Comparison of the degree of physical activity in IBS vs. non-IBS patients in different populations

  2 years

• Comparison of the degree of physical activity and IBS symptom severity in different populations

  2 years

Study Arms (2)

IBS - arm

Other: questionnaire

healthy - arm

Other: questionnaire

Interventions

questionnaire OTHER

questionnaire will be filled in by all participants

IBS - arm; healthy - arm

Eligibility Criteria

• Age: 18 Years - 65 Years
• Sex: all
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

Healthy subjects, IBS patients

You may qualify if:

• years;
• Provide written informed consent;
• Living in Belgium

You may not qualify if:

• 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.

Sponsors & Collaborators

• Universitair Ziekenhuis Brussel: lead

Study Sites (1)

UZ Brussel

Jette, Brussels Capital, 1090, Belgium

RECRUITING

MeSH Terms

Conditions

Irritable Bowel Syndrome

Interventions

Surveys and Questionnaires

Condition Hierarchy (Ancestors)

Colonic Diseases, Functional; Colonic Diseases; Intestinal Diseases; Gastrointestinal Diseases; Digestive System Diseases

Intervention Hierarchy (Ancestors)

Data Collection; Epidemiologic Methods; Investigative Techniques; Health Care Evaluation Mechanisms; Quality of Health Care; Health Care Quality, Access, and Evaluation; Public Health; Environment and Public Health

Central Study Contacts

Sébastien Kindt

CONTACT

+32 2 477; Sebastien.kindt@uzbrussel.be

Virgini Van Buggenhout

CONTACT

+32 2 477; virgini.vanbuggenhout@uzbrussel.be

Study Design

• Study Type: observational
• Observational Model: CASE CONTROL
• Time Perspective: PROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: October 27, 2021
• First Posted: March 24, 2022
• Study Start: October 15, 2022
• Primary Completion (Estimated): December 31, 2030
• Study Completion (Estimated): December 31, 2030
• Last Updated: December 18, 2025

Record last verified: 2025-12

Data Sharing

• IPD Sharing: Will not share

Locations

BE (1)