Altered quality of life in patients with stage III or IV colon cancer is well known. At their
sides, their spouse/partner must also cope with the suffering caused by the disease and the
upheavals that it engenders, with the treatments, in the organization of their everyday life.
The physical, emotional, social and financial impact of cancer in general and its treatment
on care-givers has already been studied. However, there are no data concerning the "objective
burden", that is to say the nature and the magnitude of the care weighing on the spouse of
persons with colon cancer. Objective is to develop and validate a questionnaire that can be
completed by the spouse/partner of patients with stage III or IV colon cancer so as to
evaluate the burden of the disease in everyday life. It will allow medico‐social
professionals to identify spouses/partners in difficulty and the needs of patients so as to
offer the best support.