Figure 1.
Loco-regional recurrence-free survival (LRFS) according to p-S6K1 expression status in patients with or without radiotherapy. Kaplan-Meier estimates of LRFS among patients treated with (a) and without (b) radiotherapy. Patients with positive p-S6K1 expression showed significantly worse LRFS compared to those with negative p-S6K1 expression when treated with radiotherapy (*p = 0.015). In contrast, no difference in LRFS based on p-S6K1 expression status was seen in patients who did not receive radiotherapy (*p = 0.702). *Kaplan-Meier survival estimate compared by a log-rank test.