Fig. 3From: Increased C4 and decreased C3 levels are associated with a poor prognosis in patients with immunoglobulin A nephropathy: a retrospective studyA nomogram to predict the probabilities of three- and five-year event-free survival. Points are assigned for parameters, such as serum C3 and C4 levels by drawing a line upward from the corresponding values to the “Points” line. The sum of these two points, plotted on the “Total points” line, corresponds to the prediction of three- and five-years endpoint eventsBack to article page