Table 6. Cox multivariate analysis for prognostic factors.

	Overall survival			Disease-free survival
	Hazard ratio	95%CI	p	Hazard ratio	95%CI	p
Tumor size	5.10	1.64–15.83	0.005	1.86	1.12.-3.06	0.016
Lymph node	6.86	2.15–21.87	0.001	2.08	1.20–3.60	0.009
P53 expression	5.97	1.62–21.92	0.014	1.29	0.74–2.25	ns
CCND1 amplification	4.65	0.82–26.37	ns	3.03	1.47–6.27	0.003
Cyclin D1 expression	0.12	0.035–0.44	0.001	0.57	0.29–1.12	ns