Data source
cancer
CANCER
The SEER database contains millions of patient records, which encompass a period ranging from 1973 to 2018. These records represent over 30% of the total U.S. population. All cases were obtained from 18 local cancer registries. We attempt to find the independent risk factors affecting prognosis and develop a nomogram to predict the survival of patients with ES based on clinicopathological data. We used the SEER database to identify all cases of ES diagnosed between 2004 and 2015 based on ICD‐O‐3.