Early-Onset Colorectal Cancer Patients Too Young for Screening

Specifically, investigator want to investigate the effect of having a diagnosis of CRC before the age of 35 years on:disease stage at presentation, insurance status at diagnosis, treatment patterns by stage, and adjusted cancer-specific survival. The hypothesis is that patients younger than 35 years of age with CRC will present with more advanced disease at diagnosis but will have longer survival overall through more aggressive therapy.