Figure 1.

Incident cases by eGFR category and percentage of total cases among all persons. New RRT starts by four groupings of eGFR (in ml/min per 1.73 m²), calculated using the Modification of Diet in Renal Disease four-variable equation. The groupings are 0–4.9, 5–9.9, 10–14.9, and >15. Early start, defined by a pretherapy eGFR >10 ml/min per 1.73 m², increased from 19% to 54% of the new starts between 1996 and 2009 and remained stable between 2009 and 2011. Patients initiating therapy at an eGFR >15 ml/min per 1.73 m² increased by approximately 1% per year from 1996 to 2009. ADR, annual data report; SAF, standard analysis files.