Constructing and Validating of Nomogram
Variables that were used to construct a nomogram for predicting the CSS
of patients included age, race, tumor size, grade and radiotherapy
(P<0.05) (Figure 2). Each of the independent factors were
scored on a point scale axis (Table 2) and the total score calculated as
the sum of each score was projected on the bottom scale and the
probabilities of 1-, 3- and 5-year CSS for individual patients were thus
estimated.