Study Population Characteristics and Survival Information
In total, 20,830 patients were eligible for this study. The final sample
size was 19,111 after excluding 1,532 patients who received treatment
other than surgery or radiation, and 187 patients who received
palliative treatment. The mean age of patients included in the study was
61.3 years with a standard deviation of 10.8 years. The majority of
patients were male (n=14,034, 73%). Approximately 90% of the patients
were white (n=17,292). Table 1 displays the full patient demographic
included in this study. The primary treatment was evenly split between
surgical and nonsurgical modalities. Furthermore, Table 1 displays the
patient demographic of the training and testing data set.