Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Multivariable analysis of risk factors associated with RFS. ctDNA positivity is defined as ctDNA positive at the primary time point. In this study, “preoperative therapy” refers to chemotherapy within 3 months of procedure. Primary tumor types were binned into ascending (ascending or transverse tumor) or descending (descending, sigmoid, or rectal tumor).
