Statistical Analysis
EVENTS, EVENT
Statistical analysis was conducted between September 2022 and March 2023. Treatment failure events were defined as R2 resection, occurrence of LR after R0 or R1 resection, or DM, whichever occurred first. Time to treatment failure was defined as the time from randomization to the treatment failure event. The Spearman correlation was used to examine the correlation between DFS and OS, both defined from randomization. The 