Variables | Categories | Number (n) | Proportion (%) |
Histologic type | Ductal carcinoma infiltrant | 422 | 84.7 |
CIS | 29 | 7.8 | |
Papillary carcinoma infiltrant | 7 | 1.4 | |
Lobular carcinoma infiltrant | 11 | 2.2 | |
Mucinous carcinoma | 13 | 2.6 | |
Others | 16 | 3.2 | |
Histologic grade (SBR) | Grade 1 | 139 | 27.8 |
Grade 2 | 201 | 40.2 | |
Grade 3 | 82 | 16.4 | |
Unknown | 78 | 15.6 | |
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Molecular classification | Yes | 170 | 34.2 |
No | 327 | 65.8 | |
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Molecular types (N = 170) | Luminal A | 51 | 30 |
Luminal B | 34 | 20 | |
HER2+ | 14 | 8.2 | |
Triple negative | 71 | 41.8 | |
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ACR classification (N=324) | ACR0 | 0 | 0 |
ACR1 (normal) | 0 | 0 | |
ACR2 (benign) | 10 | 3.1 | |
ACR3 (very benign) | 44 | 13.6 | |
ACR4 (suspicious) | 193 | 59.6 | |
ACR5 (suggests cancer) | 71 | 21.9 | |
ACR6 (cancer) | 6 | 1.8 |