fig1

Figure 1. Kaplan-Meier survival curves for OS stratified by clinical characteristics. (A-D) OS curves stratified by clinical characteristics: (A) T stage (T1, T2, T3, T4); (B) N stage (N0 vs. N1); (C) M stage (M0 vs. M1); (D) AFP levels (Normal, Elevated, High). Log-rank tests were used to compare survival differences between groups. The “Number at risk” tables below each plot indicate the number of patients remaining at each time point. AFP: Alpha-fetoprotein; OS: overall survival; T stage: primary tumor; N stage: regional lymph node involvement; M stage: distant metastasis.