TABLE 1

Patient Characteristics

Characteristicn%
Total patients150100
Age (y)
 ≤508053.3
 507046.7
Body mass index
 3011878.7
 ≥303221.3
T stage
 T1–T212885.3
 T3–T42214.7
Lymph node involvement
 No5838.7
 Yes9261.3
Histologic type
 Ductal13992.7
 Lobular96
 Other21.3
SBR tumor grade
 Grade I74.7
 Grade II6543.3
 Grade III7550
 Unknown32
SBR number of mitoses
 Score I4530
 Score II4832
 Score III5134
 Unknown64
Hormonal receptor status
 Negative5939.3
 Positive9160.7
Tumor phenotype
 HER24731.3
 Luminal6140.7
 TNBC4228
Surgery
 Mastectomy6140.7
 Breast-conserving surgery8959.3
pCR
 ypT0/is
  Yes4228.0
  No10872.0
 ypN0
  Yes9372.0
  No5738.0
 ypT0/is ypN0
  Yes3926.0
  No11174.0
  • SBR = Scarff–Bloom–Richardson grade.