Table 1 Patient and tumour characteristics
From: Multimodal ultrasound features of breast cancers: correlation with molecular subtypes
Characteristics | n (%) |
|---|---|
Age (y) | Â |
 Mean ± standard deviation | 52.9 ± 9.2 |
 Median (Range) | 53 (30–77) |
Tumour size (cm, ± SD) |  |
 Mean ± standard deviation | 2.33 ± 1.14 |
 Median (Range) | 1.97 (0.35–5.28) |
Histopathology | Â |
 Invasive ductal cancer | 77 (90.5) |
 Invasive lobular cancer | 5 (6.0) |
 Other* | 3 (3.5) |
Histologic grade | Â |
 Grade 1 | 15 (17.6) |
 Grade 2 | 26 (30.6) |
 Grade 3 | 44 (51.8) |
Estrogen receptor | Â |
 Negative | 29 (34.1) |
 Positive | 56 (65.9) |
Progesterone receptor | Â |
 Negative | 36 (42.4) |
 Positive | 49 (57.6) |
HER2 | Â |
 Negative | 54 (63.5) |
 Positive | 31 (36.5) |
Ki-67 | Â |
 High ( > = 14%) | 57 (67.1) |
 Low (< 14%) | 28 (32.9) |
Molecular subtype | Â |
 Luminal A | 36 (42.4) |
 Luminal B | 20 (23.5) |
 HER2+ | 16 (18.8) |
 TNBC | 13 (15.3) |