Table 1.

Patient and tumor characteristics

Metabolic response
CharacteristicPatients, n%ResponderNonresponder
Total number281810
Age, y
 Mean52.753.452.4
 SD10119.2
 Range36–7640–7636–63
Tumor size (mm)
 Mean47.442.254.3
 SD21.916.429.7
 Range15.8–11718–8015.8–117
Histology
 IDC2692.8188
 ILC13.501
 Muc13.501
Estrogen receptor status
 Positive2278.5157
 Negative621.433
Progesterone receptor status
 Positive1760.7116
 Negative1139.274
HER2 status
 Positive0000
 Negative281001810
Distant metastasis
 Positive1450104
 Negative145086
  • Abbreviations: IDC, invasive ductal carcinoma; ILC, invasive lobular carcinoma; Muc, mucinous carcinoma.