Table 1 Clinicopathological characteristics of Cohorts I and II
Cohort I (n = 179) | Cohort II (n = 564) | |
|---|---|---|
Age (years) | ||
Median (range) | 65 (35 to 97) | 45 (25 to 57) |
Tumour size | ||
≤ 20 mm | 105 (59) | 208 (37) |
>20 mm | 74 (41) | 356 (63) |
Grade | ||
I | 38 (21) | 58 (10) |
II | 79 (44) | 222 (40) |
III | 62 (35) | 234 (42) |
Missing | 50 (8.9) | |
Histological type | ||
Indeterminate | 3 (2) | 7 (2) |
Invasive ductal carcinoma | 125 (70) | 411 (73) |
Invasive lobular carcinoma | 31 (17.3) | 43 (7.6) |
Tubular | 16 (8.9) | 5 (1) |
Medullary | 4 (2.2) | 25 (4) |
Mucinous | 3 (1) | |
Missing | 70 (12) | |
Nodal status | ||
Negative | 87 (49) | 160 (28) |
Positive | 65 (36) | 402 (71) |
Missing | 27 (15) | 2 (0.3) |
Oestrogen receptor status | ||
Positive | 157 (88) | 324 (57) |
Negative | 22 (12) | 151 (27) |
Missing | 89 (16) | |
Progesterone receptor status | ||
Positive | 52(29) | 147 (26) |
Negative | 127 (71) | 312 (55) |
Missing | 105 (19) |