Comparison of IORT (Radical and Boost Dose) and EBRT in Terms of Disease-Free Survival and Overall Survival according to Demographic, Pathologic, and Biological Factors in Patients with Breast Cancer

Table 5

Factors associated with recurrence in patients that received radical dose by IORT ( value was considered concerning each variable that has the most risk).

		Electron radical		X-ray radical		value
		N	%	N	%
Stage	1	4/218	1.80	2/22	8.30	0.08
	2	2/89	2.20	135	2.80
Size		5/271	1.80	2/44	4.30	0.02
	2.5 = 3 cm	1/24	4.00	1/10	9.10
Grade	1	1/49	2.00	0/15	0.00	0.15
	2	3/178	1.70	2/23	8.00	0.71
	3	2/65	3.00	1/16	5.90
LVI	Positive	1/34	2.90	0/10	0.00	0.58
	Negative	5/255	1.90	0/3	0.00
Ki67		4/97	4.00	0/0	0.00	0.95
		2/174	1.10	0/4	0.00
HER2	Positive	0/52	0.00	0/11	0.00	0.4
	Negative	6/226	2.60	3/43	6.50
ER	Positive	5/251	2.00	0/39	0.00	0.25
	Negative	1/48	2.00	1/8	11.10
PR	Positive	5/223	2.20	0/0	0.00	0.14
	Negative	1/58	1.70	0/0	0.00