Age

18–any

Sex

ALL

Healthy volunteers

Not accepted

All stage 4 and 5 Chronic Kidney Disease patients that were included in the program from 01/01/2021 to 31/12/2021 in the clinics of AURA SANTE

Patients without a medical follow up during this year (2021)
Patients with insufficient or no data during the 24 month of follow up period
Active treatment with corticosteroids, cytotoxic or immunosuppressive drugs, ongoing infection, autoimmune disease or active tumor process

Evaluation of a Pathway on the Evolution of Renal Function in Patients With Advanced Chronic Kidney Disease