Table 2.
Factors | Recurrence-Free Survival | Overall Survival | ||||||
---|---|---|---|---|---|---|---|---|
Univariable | Multivariable | Univariable | Multivariable | |||||
HR (95% CI) | p-Value | HR (95% CI) | p-Value | HR (95% CI) | p-Value | HR (95% CI) | p-Value | |
Gender: male vs. female | 0.863 (0.547–1.360) | 0.525 | 1.249 (0.366–4.268) | 0.723 | ||||
Age: <55 vs. ≥55 years | 1.283 (0.813–2.025) | 0.285 | 1.401 (0.408–4.814) | 0.593 | ||||
Tumor size: <2.5 vs. ≥2.5 cm | 6.120 (3.142–11.919) | <0.001 | 4.975 (2.538–9.752) | <0.001 | 7.662 (0.974–60.291) | 0.053 | ||
Tumor location: head vs. neck/body/tail | 1.069 (0. 657–1.738) | 0.789 | 1.281 (0.340–4.831) | 0.714 | ||||
Lymph node positive: no vs. yes | 4.448 (2.745–7.206) | <0.001 | 2.818 (1.628–4.879) | <0.001 | 5.284 (1.605–17.398) | 0.006 | ||
Perineural invasion: no vs. yes | 2.608 (1.527–4.455) | 0.001 | 3.446 (0.861–13.782) | 0.080 | ||||
Microvascular invasion: no vs. yes | 3.317 (2.058–5.345) | <0.001 | 4.958 (1.425–17.250) | 0.012 | 4.395 (1.215–15.905) | 0.024 | ||
Margin status: R0 vs. R1 | 4.963 (1.997–12.331) | 0.001 | 4.794 (0.606–37.939) | 0.138 | ||||
Adjuvant treatment: no vs. yes | 3.643 (2.178–6.093) | <0.001 | 1.840 (1.004–3.373) | 0.048 | 4.587 (1.338–15.730) | 0.015 | ||
WHO classification: G1/G2 vs. G3 | 12.357 (5.810–26.280) | <0.001 | 6.904 (2.994–15.916) | <0.001 | 16.665 (4.225–65.732) | <0.001 | 7.718 (1.543–38.602) | 0.013 |
HR: hazard ratio; CI: confidence interval; WHO: World Health Organization.