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Table 2 Baseline characteristics

From: MRI-based response patterns during neoadjuvant chemotherapy can predict pathological (complete) response in patients with breast cancer

Characteristic Number   Percentage
Age, years
 Mean (n = 76)   53  
 Range   29–72  
T-stage prior to NAC
 T1 13   16
 T2 46   58
 T3 15   19
 T4 5   6
 Tx 1   1
N-stage prior to NAC
 N0 49   61
 N1 22   28
 N2 3   4
 N3 6   8
Histology
 Invasive carcinoma NST 71   89
 Lobular carcinoma 9   11
DCIS
 Present 21   26
 Absent 45   56
 Unknown 14   18
Subtype by receptor status
 ER/PR+ HER2+ 13   16
 ER/PR+ HER2- 48   60
 ER- PR-HER2+ 6   8
 ER-PR-HER2- 13   16
Grade
 1 2   3
 2 35   44
 3 25   31
 Unknown 18   23
Surgical method
 Mastectomy 46   58
 Lumpectomy 34   43
  1. Abbreviations: T-stage tumor stage, NAC neoadjuvant chemotherapy and immunotherapy, N-stage nodal stage, NST no special type, DCIS ductal carcinoma in situ, ER estrogen receptor, PR progesterone receptor, HER2 human epidermal growth factor receptor 2
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