Table 3.

Univariate Analysis of Relapse-Free Survival

	Log rank test	P
Differentiation: Grades II+ III vs. I	11.33	<0.001*
Tumor size: >2 cm vs. ≤2 cm	6.38	0.01*
Lymph node metastases: N+ vs. No	15.21	<0.001*
PgR: negative vs. positive	5.27	0.02*
ER: negative vs. positive	4.77	0.02*
Apoptosis: ≥0.76% vs. <0.76%	8.03	0.004*
Clusterin: positive vs. negative	0.35	0.55
Ki67: positive vs. negative	0.81	0.36
Menopause status: pre- vs. postmenopausal	2.58	0.10

*Statistically significant, P < 0.05.