Figures
Figure 1. Kaplan–Meier curve of the overall survival probability of patients with recurrent NPC.
Figure 2. Kaplan–Meier curves for survival of patients with different rT stage (p = 0.002).
Figure 3. Kaplan–Meier curves for survival of patients in recurrent NPC. A: different age (≥50 years vs. <50 years old), B: diabetes, C: BMI (<20 kg/m2, 20 kg/m2–26 kg/m2, >26 kg/m2), D: Low hemoglobin (<120 g/l vs. ≥ 120 g/l), E: NLR (≥6 vs. <6), F: rT stage (rT1, rT2 vs. rT3, rT4), G: lymph node metastasis, H: tumor necrosis.
Figure 4. Receiver operating characteristic analysis revealed that tumor necrosis was the best predictor for OS. The area under the ROC curve for tumor necrosis was 0.347 (95% confidence interval [CI], 0.264 to 0.429; p<0.001) for OS. AUC, area under the curve; SE, standard error.