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

Recruiting

• Conditions: Irritable Bowel Syndrome
• Interventions: Other: questionnaire

• Registration Number: NCT05293769
• Lead Sponsor: Universitair Ziekenhuis Brussel

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.

Detailed Description

Not available

Study Timeline

• Study First Submitted: 2021-10-27
• Study First Submitted QC: 2022-03-22
• Study First Posted: 2022-03-24
• Study Start: 2022-10-15
• Status Verified: 2024-11
• Last Update Submitted: 2024-11-21
• Last Update Posted: 2024-11-25
• Primary Completion: 2025-12-31
• Study Completion: 2025-12-31

Recruitment & Eligibility

• Status: RECRUITING
• Sex: All
• Target Recruitment: 400

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.

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Arm && Interventions

Group	Intervention	Description
healthy - arm	questionnaire	-
IBS - arm	questionnaire	-

Primary Outcome Measures

Name	Time	Method
To validate the newly developed food frequency questionnaire against the standard 4-day food diary across different populations	2 years

Secondary Outcome Measures

Name	Time	Method
Comparison of dietary and FODMAP intake in IBS vs. non-IBS patients in different populations	2 years	differences in number and type of FODMAP intake between groups
Comparison of the degree of physical activity in IBS vs. non-IBS patients in different populations	2 years	differences and correlation of IPAQ (International Physical Activity Questionnaire) scores between groups, IPAQ evaluates the level of physical activity. Scoring a HIGH level of physical activity on the IPAQ means your physical activity levels equate to approximately one hour of activity per day or more
Comparison of the degree of physical activity and IBS symptom severity in different populations	2 years	differences and correlation of IPAQ scores between groups; IPAQ evaluates the level of physical activity. Scoring a HIGH level of physical activity on the IPAQ means your physical activity levels equate to approximately one hour of activity per day or more

Trial Locations

Locations (1)

UZ Brussel; 🇧🇪 Jette, Brussels, Belgium