Table 3.

Tumor Characteristic of Patients Undergoing One-Stage and Two-Stage Approaches

	One-Stage (78)	Two-Stage (27)	p-value
Mean tumor size (mm) (on pre-op imaging)	30.7	39.9	0.003
Total number of patients	78	27
DCIS only	4	4 (1 with microinvasion)
Invasive cancers	74$	23
Neo-adjuvant chemotherapy	11	5
Chemotherapy (adjuvant and NAC)	46* (61%)	14 (64%)
Her-2 positive cancers	12 (16%)	4 (18%)
Node positive cancers	35 (47%)	12 (54%)
TNBC	15 (18%)	3 (14%)

Notes: * Three declined. ^$ One patient had metastatic cancer.