Validation of a computer-generated food frequency questionnaire.
Completed
- Conditions
- methodologiemethodology food frequency questionnaire
- Registration Number
- NL-OMON31708
- Lead Sponsor
- Wageningen Universiteit
- Brief Summary
Not available
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- Completed
- Sex
- Not specified
- Target Recruitment
- 110
Inclusion Criteria
Healthy volunteers aged between 25 and 65 years, apparently healthy.
Exclusion Criteria
Participants who are ill during one of the food record days, donate blood during the study period, use antibiotics containing sulphonamides, dieticians, and are employed at the Wageningen University department of Human Nutrition or those who are enrolled in other studies during the same period are excluded. Also those that suffer from one of the following diseases: diabetes, or renal failure and those who are oversensitive to sulphonamides are excluded. Women who are pregnant or lactating also can not participate in the study.
Study & Design
- Study Type
- Observational non invasive
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method <p>Primary study parameters are correlation coefficients between FFQ and food<br /><br>diary for energy, protein, fatty acids, carbohydrates, fruit, vegetables and<br /><br>fibre. Next to that we will also calculate correlation coefficients between FFQ<br /><br>and biomarkers for protein, potassium and fatty acids. The height of these<br /><br>correlations provide insight in how valid the FFQ is for ranking participants<br /><br>according to differences in food intake.</p><br>
- Secondary Outcome Measures
Name Time Method <p>An extra goal is to study the potential of sucrose/fructose as biomarker of<br /><br>carbohydrates and/or mono-disaccharides, showing possibly another pattern of<br /><br>overreporting or underreporting than for energy, fat and fruit and vegetables. </p><br>