Table 3. Univariate and multivariate analysis of factors related to disease-free survival (DFS) in breast cancer patients.

Variables	DFS
	Univariate Analysis		Multivariate Analysis
	HR(95% CIs)	P	HR(95% CIs)	P
Age	0.815(0.552-1.534)	0.939	0.971(0.554-1.700)	0.917
Histological grade	1.761(1.041-2.980)	0.035	1.749(0.965-3.170)	0.065
Tumor Size	1.715(1.086-2.708)	0.021	1.648(1.042-2.606)	0.033
Metastatic nodes	2.231(1.304-3.819)	0.003	2.158(1.236-3.769)	0.007
ER	0.786(0.456-1.356)	0.388	1.491(0.713-3.117)	0.288
PR	0.408(0.185-0.903)	0.027	0.372(0.144-0.960)	0.041
HER-2	0.936(0.548-1.600)	0.809	0.754(0.412-1.378)	0.358
BCDIN3D	1.754(1.012-3.039)	0.045	1.904(1.081-3.354)	0.026

Abbreviations: HR, hazard ratio; CIs, confidence intervals; ER, estrogen receptor; PR, progesterone receptor; HER-2, human epidermal growth factor receptor 2;