Figure 1. Kaplan-Meier Curve of Renal Survival in 898 Children With Chronic Kidney Disease (CKD) by Soluble Urokinase Receptor (suPAR) Quartile.
Five-year renal survival probability in children with CKD is plotted according to suPAR quartile. Q1 indicates a suPAR level less than 4.610 pg/mL; Q2, 4.610–5.658 pg/mL; Q3,5.658–7.053; Q4, greater than 7.053. Q1 is the lowest quartile and Q4 is the highest quartile.