Participants
colorectal cancer, Cancer
COLORECTAL CANCER, CANCER
Participants included in the study were due to receive an invitation to the nationally organized Colo-Rectal Cancer (CRC) screening during the study period. Invitation is by an administrative letter sent every two years to those aged between 50 and 74 by a screening management structure. Invitations sent by the structure encourage people to consult their General Practitioner (GP) so that he delivers them the screening test, which is made at home and sent for analysis by mail to the laboratory. Results are sent back to the GP and the screening management structure, where the data were collected.Study participants were men and women aged from 50 to 74, invited to participate in the CRC screening. The inclusion criteria were: to be between 50 and 74 years old at the time of selection, to be covered by health insurance, to have their postal address located within the IRIS zone concerned, and to be included in the register of persons eligible for organised colorectal cancer screening. Being included in this register led to an automatic invitation to screening every 2 years. The exclusion criteria were not being included in the registry because of a change of residence, lack of insurance coverage, or ineligibility for screening (history of colorectal cancer, or at high or very high risk of colorectal cancer, and therefore followed up elsewhere). Data on participation in screening in the 2 years prior to the start of the study were collected retrospectively from the screening management structures for all participants. Participants were followed prospectively for 2 years after the implementation of the intervention. 1 year during which the navigators carried out their intervention and 1 year for the collection of screening data.