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Prevalence and Incidence

Prevalence of CKD is the proportion of cases in the population at a given time. Incidence of CKD is the count or rate of new cases (or newly discovered cases) of CKD over time. The percentage of adults with CKD stages 1–4 (i.e., prevalence) from 1999 to 2016 has remained relatively unchanged. Incidence of treated end-stage renal disease (ESRD) with dialysis or a kidney transplant has increased by about 93% from 1990 to 2016, and the proportion of the overall incident population starting ESRD treatment with a kidney transplant remained at about 2% over the entire period.