conducted in the Nephrology Department of Aristide le Dantec Hospital. Patients admitted for consultation or hospitalization with chronic kidney disease from stage 3 and non-dialysed were included. All patients younger than 15 years old and patients with incomplete or unexploitable files were not included. For each patient, we collected epidemiological parameters, antecedents, clinico-paraclinical and etiological parameters using a survey form. Therapeutic measures and evolutionary parameters were also studied. Collected data has been entered and analyzed with Epi