Behaviour and Cognitive Evaluation for Dialysis Elderly Patients (BCDE)

The trial is a multicenter, prospective, randomized, open study. A total of 500 elderly patients aged over 75 years with renal insufficiency stage 5 will be included in the study after signed informed consent. Patients will be randomized 1/1 in two arms : 250 patients in the "exclusive nephrology follow-up" arm will continue their usual follow-up; 250 patients in the "geriatric follow-up" arm will have both their usual nephrology follow-up and a geriatric follow-up.The aim of the study is to determine if a systematized gerontologist evaluation delay the occurrence of a composite primary endpoint : death, dementia, depression and severe dependency. The hypothesis is that the functional and vital prognosis of a patient with renal insufficiency depends not only on common and classical factors but also on cognitive and psychological functions and dependence, particularly in elderly patients.