Qualitative data were collected from 5 General Practionners (GPs) focus groups, 24 patient interviews and 35 recorded consultations from 9 GPs to explore colorectal cancer (CRC) screening in France The qualitative data indicated that improvement was needed in patient-centered communication. Educational material was developed based on these triangulated data with two different scenarios to improve communication with patients: one for a compliant patient, another for a non compliant patient The hypothesis is that a brief intervention on GPs can improve the patients' participation rate to colorectal screening