Fig. 3

Kaplan–Meier OS (a), PFS (b), DMFS (c), and LRFS (d) curves for the combination of SUA and tumor response to IC in LANPC patients. Group1 indicates a high SUA level (> 327 μmol/L) and CR/PR; Group2 indicates a low SUA level (≤327 μmol/L) and CR/PR or a high SUA level (> 327 μmol/L) and SD/PD; Group3 indicates a low SUA level (≤327 μmol/L) and SD/PD