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Nomogram for the prediction of Gleason upgrading in potential active surveillance patients. Nomogram instructions: To obtain the nomogram-predicted probability of upgrading, locate patient values on each axis. Draw a vertical line to the ‘Points’ axis to determine how many points are attributed for each variable value. Sum the points for all variables. Locate the sum on the ‘Total Points’ line to assess the individual probability of upgrading on the ‘Probability of Upgrading’ line
