a trend toward significancep = 0.0631
In contrast, no significant relationship was observed in the HPV-negative group, although a trend toward significance was noted for citrulline and OS (HR: 0.95 95% CI: 0.90–1.00, p = 0.0631) ( Table 2 ).
In contrast, no significant relationship was observed in the HPV-negative group, although a trend toward significance was noted for citrulline and OS (HR: 0.95 95% CI: 0.90–1.00, p = 0.0631) ( Table 2 ).