CRP and alcohol abuse: Higher pre-treatment CRP (HR = 3.53; 95% CI: 1.50–8.32; p = 0.004), higher lymph node status (HR = 3.28; 95% CI: 1.33–8.12; p = 0.010), and alcohol abuse (HR = 5.78; 95% CI: 1.04–31.97; p = 0.045) were independent adverse prognostic factors for DFS.