Survival analysis in different subgroups. (A-B) Subgroup analysis; comparison of Kaplan-Meier estimates for EFS (A) and OS (B) between VEN-treated patients and patients from the TPC cohort who received different types of salvage therapy. OS and EFS were calculated from the initiation of VEN-based salvage therapy or the first conventional salvage therapy in the TPC cohort. ∗Due to the explorative nature of this analysis, no correction for multiple testing was performed. CHT, chemotherapy.