查看文章

The incidence of right-sided colon cancers has been increasing in recent years. It is unclear whether patient prognosis varies by tumor location. In this study, we have compared the survival of right-and left-sided colon cancers in a longitudinal population-based database.

A retrospective survival analysis was performed using the Surveillance, Epidemiology, and End Results Program (SEER) database between 1988 and 2003 on subjects who underwent surgical resection for the a primary diagnosis of pathologically confirmed invasive colon adenocarcinoma. Cox proportional hazard regression analysis was used to assess long-term survival outcomes comparing right-sided (cecum to transverse colon, excluding appendix) versus left-sided (splenic flexure to sigmoid, excluding rectum) colon cancers.