Figure 3
A, Kaplan-Maplan curves for overall survival rates of 280 patients with NPC. B, Kaplan-Maplan curves for overall survival rates of different clinical stage, patients with stage III/IV have a lower survival rate than those with stage I/II (P = 0.0094, log rank test). C, Kaplan-Maplan curves for overall survival rates of female and male paitents, male patients present lower survival rate than female paitents (P = 0.0004, log rank test)