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Patient characteristics
| Characteristic | Received IORT n=71 (%) | no IORT n=18(%) |
|---|---|---|
| Mean age (range) | 64.8 (48–92) | 65.9 (48–83) |
| Clinical Staging | ||
| cT1a | 2 (2.8%) | 3 (17%) |
| cT1b | 18 (25%) | 9 (50%) |
| cT1c | 35 (49%) | 4 (22%) |
| cT2 (<3cm) | 16 (23%) | 2 (11%) |
| cN0 | 89 (100%) | |
| Grade | ||
| I | 25 (35%) | 5 (28%) |
| II | 24 (34%) | 9 (50%) |
| III | 22 (31%) | 4 (22%) |
| Markers | ||
| ER+ | 56 (79%) | 15 (83%) |
| PR+ | 49 (69%) | 10 (56%) |
| HER2+ | 7 (10%) | 1 (5.6%) |
| ER+, PR+, HER2− | 46 (65%) | 10 (56%) |
| “triple negative” | 12 (17%) | 2 (11%) |
