Table 3: Univariate analysis of clinicopathological factors.

Characteristic Overall survival Cancer-specific survival
HR (95% CI) HR (95% CI)

Gender
Male versus female1.13 (0.37–3.47)0.820.80 (0.21–3.04)0.75
T stage
0/1/2 versus 3/40.95 (0.37–2.46)0.911.08 (0.31–3.82)0.90
N stage
Positive versus negative2.36 (1.52–3.46)0.023.95 (1.04–6.82)0.04
Lymphatic invasion
Present versus absent1.18 (0.38–3.66)0.771.03 (0.27–3.96)0.96
Vascular invasion
Present versus absent2.91 (1.02–4.03)0.041.55 (0.33–7.31)0.35
CRM
Positive versus negative0.76 (0.42–3.32)0.761.71 (0.55–5.26)0.14
Differentiation
Well/moderate versus poor1.08 (0.42–2.82)0.860.85 (0.28–2.56)0.64
TSNegative versus positive1.32 (0.36–2.56) 0.811.27 (0.29–1.92)0.76