Predictor selection
death, tumor, cancer, AJCC, Cancer
CANCER, TUMOR, CANCER
This study aimed to identify prognostic factors for cancer overall survival on CVC patients who were diagnosed between 2004-2015 and staged according to the sixth edition of the American Joint Committee on Cancer (AJCC) staging system which published in 2004. The various demographic and clinical variables screened as CVC prognostic factor that were age, sex, race, marital status, AJCC stage, surgery, radiation, cause-specific death, vital status, chemotherapy, tumor size, combined summary stage, and income. However, due to significant multicollinearity among these factors, we only used the AJCC staging system in the analysis. The outcome predicting variable was cancer overall survival. It is important to note that patient-informed permission was not necessary, as the SEER database used in this study did not include any personally identifying information.