Table 4.

Factors affecting DFS in patients aged ≤45 years in the endocrine-only group*(subgroup analyses).

	HR	95% CI Lower-Upper	p value
Oncotype score (<18 vs ≥18)	13.4	1.56-115	0,01
Oncotype score	1.21	1.04-1.40	0,01
Age	0.99	0.80-1.23	0,96
PR > 20	1.32	0.15-11.3	0,80
Tumor size	0.97	0.86-1.08	0,58
Histologic grade (1vs 2-3)	1.43	0.16-12.3	0,74
Stage 1 vs Stage 2	0.41	0-1806	0,55
Clinical risk score (low vs high)	0.89	0.16-4.89	0,90
Lymphatic invasion	0.26	0-31.2	0,31
Vascular invasion	0.039	0-146	0,32

* Insufficient number of postmenopausal patients under the age of 45 to assess menopausal status.

P-values that are less than 0.05 are accentuated in bold within the table.