Table 3. Multivariate Cox’s analysis of DFS of young breast cancer.

Item	HR	95% CI	P
Lymph node status (positive:negative)	1.954	1.004-3.804	0.041
Molecular subtype			0.037
HER-2:TNBC	0.284	0.105-0.963
Luminal A:TNBC	0.102	0.013-0.795
Luminal B:TNBC	0.549	0.259-1.164

DFS, disease-free survival; HR, hazard ratio; 95% CI, 95% confidence interval; HER-2, human epidermal growth factor receptor 2; TNBC, triple negative breast cancer.