Figure 1.
Kaplan–Meier estimates of survival functions for disease-free survival (DFS) by histological grade, baseline metabolic tumor volume (MTV), and reduction rate (%RR) of MTV. (A) The group with high histological grade showed significant poorer prognosis than the low histological grade group (P < 0.001, HR = 5.81, 95% CI = 2.61–12.97). (B) The prognosis of patients with high MTV tumors at baseline (baseline MTV ≥5.23 cm3) was poorer than those with low baseline MTV tumors (P = 0.019, HR = 2.38, 95% CI = 1.18–4.82). (C) Patients with a low RR of MTV after NAC (%RR ≤90.72%) showed poorer prognoses than those with a high RR (P = 0.008, HR = 2.57, 95% CI = 1.26–5.25).