Figure 1From: Comparison of quality-of-care measures in U.S. patients with end-stage renal disease secondary to lupus nephritis vs. other causesSelection of analytic populations for examination of the association of attributed cause of ESRD with pre-ESRD nephrology care, access to transplant, and vascular access, among U.S. ESRD patients initiating treatment 7/05–9/11. Numbers by arrows represent the numbers of patients excluded by indicated criteria; numbers in boxes represent those remaining after prior exclusions.Back to article page