Table 3.

Multivariate analysis for predictors of recurrence based on the Cox proportional hazards regression model

Variables	HR	95% Confidence interval	p
Age <35 years	1.7	1.14–2.61	0.010
Tumor size ≥ 2 cm	2.0	1.30–3.07	0.002
Lymph node-positive	3.8	2.64–5.67	<0.001
Nuclear grade 3	1.4	0.90–2.39	0.124
Histological grade 3	0.9	0.54–1.49	0.675
ER	1.1	0.77–1.63	0.549
PR	2.1	1.41–3.19	0.001
c-erbB2	1.4	1.04–2.05	0.030