Table 1 Patient demographics and tumour characteristics
Variable | Category | Results | Missing data (n (%)) |
|---|---|---|---|
Age [years] | n | 66 (100%) | 0 (0.0%) |
Mean (SD) | 60.0 (9.4) | ||
Median [Q1–Q3] | 61.0 [56.0–66.0] | ||
Min–max | 28.0–78.0 | ||
BMI [kg/m2] | n | 66 (100%) | 0 (0.0%) |
Mean (SD) | 27.4 (4.7) | ||
Median [Q1–Q3] | 27.0 [23.5–30.1] | ||
Min–max | 19.1–38.5 | ||
Histological tumour grade | n = 62 (93.9%) | 4 (6.1%) | |
G1 | 22 (35.5%) | ||
G2 | 24 (38.7%) | ||
G3 | 16 (25.8%) | ||
T-classification | n = 64 (97.0%) | 2 (3.0%) | |
Tis | 0 (0.0) | ||
T1 | 49 (76.6%) | ||
T2 | 15 (23.4%) | ||
N-classification | n = 63 (95.5%) | 3 (4.5%) | |
N0 | 54 (85.7%) | ||
N1 | 8 (12.7%) | ||
N2 | 1 (1.6%) | ||
M-classification | M0 | n = 61 (92.4%) | 5 (7.6%) |
Tumour size (invasive [mm]) | n | 64 (97.0%) | 2 (3.0%) |
mean (SD) | 16.0 (7.2) | ||
Median [Q1Q3] | 14.0 [12.0–21.0] | ||
Min–max | 2.00–35.00 | ||
Tumour type | n = 52 (78.8%) | 14 (21.2%) | |
Ductal/no special type (NST) | 38 (73.1%) | ||
Lobular | 3 (5.8%) | ||
Mucinous | 2 (3.8%) | ||
Tubular/cribriform | 1 (1.9%) | ||
Medullary | 1 (1.9%) | ||
Micropapillary | 2 (3.8%) | ||
Mixed | 5 (9.6%) | 1 (1.9%) | |
Apocrine differentiation | 2 3.8%) | ||
Neuroendocrine differentiation | 2 (3.8%) | ||
Associated DCIS | n = 42 (63.6%) | ||
Low grade | 14 (33.3%) | ||
Intermediate grade | 22 (52.4%) | ||
High grade | 6 (14.3%) | ||
Lymphovascular invasion | n = 65 (98.5%) | 1 (1.5%) | |
Present | 8 (12.3%) | ||
Absent | 57 (87.7%) | ||
Histological receptor status | n = 64 (97.0%) | 2 (3.0%) | |
ER positive | 58 (90.6%) | ||
PR positive | 47 (73.4%) | ||
HER2 positive | 4 (6.3%) |