Table 1 Characteristics of all assessed patients in the EORTC and MBTB cohorts
| Â | Â | EORTC (n= 113) | MBTB (n= 255) | ||
|---|---|---|---|---|---|
| Â | Case status | Number | % | Number | % |
Age at diagnosis | <50 years | 56 | 50% | 85 | 33% |
|  | ≥50 years | 57 | 50% | 168 | 66% |
Tumor size | ≤2 cm | 3 | 3% | 51 | 20% |
|  | <2 cm to ≤5 | 68 | 60% | 142 | 56% |
| Â | >5 cm | 42 | 37% | 39 | 15% |
| Â | Unknown | 0 | 0 | 23 | 9% |
Nodal status | Negative | 42 | 37% | 88 | 35% |
| Â | Positive | 71 | 63% | 142 | 56% |
| Â | Unknown | 0 | 0 | 25 | 10% |
Grade | 1-2 | 36 | 32% | 120 | 47% |
| Â | 3 | 65 | 58% | 119 | 47% |
| Â | Unknown | 12 | 11% | 16 | 6% |
ERa | Negative | 113 | 100% | 255 | 100% |
| Â | Positive | 0 | 0 | 0 | 0 |
PRb | Negative | 110 | 97% | 212 | 84% |
| Â | Positive | 3 | 3% | 41 | 16% |
| Â | Unknown | 0 | 0 | 2 | <1% |
Her2c | Negative | 83 | 73% | 157 | 62% |
| Â | Positive | 30 | 27% | 58 | 23% |
| Â | Unknown | 0 | 0 | 40 | 16% |