Nomograms are statistical models developed to generate individualized predictions of a certain clinical event. Since they may provide risk estimations, nomograms are widely used by oncologists as well as by patients themselves as a support for treatment decisions. Factors associated to a defined event are incorporated in the nomogram and the calculated probability of the event is provided in graphical formats. Examples of nomograms developed for breast cancer patients are the M.D. Anderson Cancer Center nomogram for predicting residual tumor size and the probability of successful conservative surgery after neoadjuvant chemotherapy [1] and the Memorial Sloan-Kettering Cancer Center nomogram for predicting the likelihood of additional nodal metastases in breast cancer patients with a positive sentinel node biopsy [2], Adjuvant! Online (www.adjuvantonline.com) is the most popular predictive tool among clinicians and patients on a web-based interface. It calculates the individual recurrence and mortality risk with and without adjuvant systemic treatment.
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