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Radiologic responses by HR status and imaging modality.
| HR+ | HR− | χ2 value | |
|---|---|---|---|
| US at week 6 | 66 (39%) | 82 (49%) | 0.065 |
| MMG at week 6 | 33 (25%) | 52 (39%) | 0.014 |
| US at surgery | 119 (76%) | 123 (81%) | 0.274 |
| MMG at surgery | 75 (62%) | 97 (76%) | 0.014 |
Abbreviations: HR+: hormone receptor status positive; HR−: hormone receptor status negative; MMG: mammography; US: ultrasound.
