Table 3 Univariate 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 p value HR (%95 Cl) | OS p value HR (%95 Cl) |
|---|---|---|
Age (years) | 0.82 1.00 (0.97–1.03) | 0.21 1.02 (0.98–1.05) |
Sex (men vs. women) | 0.36 1.62 (0.56–4.66) | 0.71 0.83 (0.31–2.32) |
T stage (T1-2 vs. T3-4) | 0.50 1.27 (0.62–2.59) | 0.82 0.91 (0.40–2.04) |
N stage (N0-1 vs. N2-3) | 0.001 0.25 (0.11–0.57) | 0.04 0.42 (0.18–0.97) |
LVI (yes vs. no) | 0.17 0.59 (0.28–1.25) | 0.34 0.67 (0.29–1.52) |
PNI (yes vs. no) | 0.50 0.76 (0.34–1.69) | 0.02 0.39 (0.17–0.88) |
ENE (yes vs. no) | 0.04 0.47 (0.23–0.97) | 0.21 0.60 (0.27–1.32) |
Adjuvant treatment (yes vs. no) | 0.03 2.30 (1.04–5.04) | 0.83 1.11 (0.41–2.96) |