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. Author manuscript; available in PMC: 2016 Feb 19.
Published in final edited form as: Ann Surg. 2012 Jan;255(1):109–115. doi: 10.1097/SLA.0b013e318238f461

Figure 2. Validation of nomogram performance.

Figure 2

Figure 2

The performance of the nomogram was quantified with respect to (A) discrimination and (B) calibration. Discrimination was quantified with the area under the receiver operating characteristic (ROC) curve (AUC). To construct the calibration curve, a histogram of the probabilities calculated using the nomogram was plotted along the horizontal axis. The vertical axis represents the actual incidence on non-SLN positivity.