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. Author manuscript; available in PMC: 2010 Apr 29.
Published in final edited form as: J Urol. 2010 Feb 19;183(4):1360–1365. doi: 10.1016/j.juro.2009.12.015

Figure 1. The surgical learning curve for a positive surgical margin.

Figure 1

Predicted probability (black curve) and 95% confidence intervals (gray curves) of a positive surgical margin are plotted against increasing surgical experience. Probabilities are for a patient with typical cancer severity (mean prostate-specific antigen level, pathologic stage, and grade) treated in 1997 (approximately equal numbers of patients were treated before and after 1997).