Table 3. Univariate and multivariate survival analyses at 3-year follow-up.

	Univariate			Multivariate *
	HR	95% CI	P	HR	95% CI	P
Recurrence-free survival
Amplification	2.96	1.27–6.90	0.01	2.97	1.26–6.99	0.01
Overexpression	1.82	0.89–3.75	0.14	2.07	0.94–4.27	0.11
Overall survival
Amplification	2.04	0.89–4.66	0.09	1.97	0.85–4.55	0.13
Overexpression	2.00	0.94–4.27	0.03	2.29	1.06–4.96	0.04

^*Multivariate analyses adjusted for stage, differentiation grade and age.

HR=hazard ratio; CI=confidence interval.