Fig. 3From: A validation study of the kidney failure risk equation in advanced chronic kidney disease according to disease aetiology with evaluation of discrimination, calibration and clinical utilityCalibration plots for the 4- and 8-variable KFREs at 2- and 5-years. A smoothing loess line has been applied to each graph. Grey shaded area represents 95% confidence intervals of the observed frequency of events. The black dots at 0% represent patients who did not develop ESRD and those at 100% represent patients who did develop ESRDBack to article page