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.