Fig. 2. Kaplan-Meier survival curves. A: Overall survial curves of the whole cohort (median=10.4 months). B-F: Survival analysis between groups of patients according to tumor locations (p=0.275) (B), surgical treatments (p=0.570) (C), Ki-67 LI of the specimens (p=0.272) (D), tumor sizes and (p=0.054) (E), and adjuvant treatments (p=0.175) (F) reveals no significant differences between the groups (log-rank test). LI, labeling index, CCRT, concurrent chemoradiation therapy; RT, radiation therapy.
