Nomogram for survival of retroperitoneal soft tissue sarcoma

The nomogram allows the user to obtain the seven-year OS probability corresponding to a patient's combination of covariates. For instance, locate the patient's tumor size and draw a line straight upward to the "Points" axis to determine the score associated with that size. Repeat the process for patient's age, FNCLCC grade, histologic subtype, multifocality, and extent of resection, then sum the scores achieved for each covariate and locate this sum on the "Total Points" axis. Draw a line straight down to the "7-year OS" axis to find the predicted probability.