Multivariate analysis of independent prognostic factors for patients with nasopharyngeal carcinoma (n = 1547).

Abbreviation: OS = Overall Survival; DFS = Disease-Free Survival; DMFS = Distant Metastasis-Free Survival; LRRFS = Loco-Regional Recurrence-Free Survival; CRT = chemoradiotherapy; RT = radiotherapy; LMR = lymphocyte-to-monocyte ratio; HR = Hazard Ratio, derived from COX proportional hazard model. In this analysis, T status, N status and tumor stage were divided into two groups. For T status: T1-2 and T3-4; for N status:N0-1 and N2-3; for tumor stage: I–II and III–IV.