Fig. 5

Kaplan-Meier estimates of survival functions for RFS in the group of SA and SMR (a) and the combination of TMTV < 3.8 SA and SMR, TMTV ≥3.8 SA, and TMTV ≥3.8 SMR groups in 163 thoracic ESCC patients (b). P-values were determined by the log-rank test. SA: surgical resection alone, SMR: surgical resection without NAC due to several medical reasons