Data collection
In the GeoLynch study, the researchers collect information about diet and lifestyle and information on any tissue changes that may occur. This information will be collected through questionnaires, a blood sample and the results of the regular colonoscopy.

Data collection and data storage will be handled in a confidential manner, will be kept in secure storage and will not be disclosed to third parties without permission. The GeoLynch study complies with the Dutch Data Protection Act.