Table 4 Multivariate analysis of different variables affecting DFS and OS
From: Perineural invasion is a better prognostic factor than extranodal extension in head and neck cancer
Variables | DFS | OS | ||
|---|---|---|---|---|
p value | HR (%95 Cl) | p value | HR (%95 Cl) | |
N stage (N0-1 vs. N2-3) | < 0.001 | 0.09 (0.02–0.30) | 0.05 | 0.42 (0.18–0.99) |
PNI (yes vs. no) | – | – | 0.02 | 0.39 (0.17–0.90) |
ENE (yes vs. no) | 0.12 | 2.10 (0.81–5.41) | – | |
Adjuvant treatment (yes vs. no) | 0.001 | 4.74 (1.92–11.69) | – | |