RecruitingNCT05293769

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

Reliability of a Food Frequency Questionnaire in the Assessment of Dietary Intake Including FODMAPs (Fermentable Oligosaccharides, Disaccharides, Monosaccharides and Polyols) in Different Populations, and Relationship With IBS (Inflammatory Bowel Syndrome) Symptoms and the Degree of Self-assessed Physical Activity

Sponsor

Universitair Ziekenhuis Brussel

Enrollment

400 participants

Start Date

Oct 15, 2022

Study Type

OBSERVATIONAL

Conditions

Irritable Bowel Syndrome

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.

Eligibility

Min Age: 18 YearsMax Age: 65 Years

Inclusion Criteria3

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

Exclusion Criteria13

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.