Local relapse after breast-conserving therapy for ductal carcinoma in situ: A European single-center experience and external validation of the memorial Sloan-Kettering cancer center DCIS nomogram
Carcinoma, Ductal, Breast
Carcinoma, Intraductal, Noninfiltrating
Neoplasm Recurrence, Local
Despite the small number of events, the need for multiple imputation, and few patients without radiation, the MSKCC nomogram performance was somewhat better than our model. This shows that the MSKCC nomogram is externally valid. The MSKCC nomogram allows users to integrate the information from 10 different variables to provide a more precise risk stratification than the use of conventional single variables or hazard ratios.