| Age ≤ 35 (%) | Age > 35 (%) | P value |
---|---|---|---|
Hormone receptor (HR) | Â | Â | Â |
   ER+ and/or PR+ | 14 (60.9) | 237 (67.7) | 0.498 |
   ER-PR- | 9 (39.1) | 113 (32.3) |  |
HER2a | Â | Â | Â |
   Negative | 8 (34.8) | 88 (25.2) | 0.328 |
   Positive | 15 (65.2) | 261 (74.8) |  |
HR/HER2 | Â | Â | Â |
   HR+ and/or HER2+ | 19 (82.6) | 297 (85.1) | 0.763 |
   HR-HER2- | 4 (17.4) | 52 (14.9) |  |
p53 | Â | Â | Â |
   <10%; | 13 (59.1) | 207 (60.7) | 1.000 |
   ≥10% | 9 (40.9) | 134 (39.3) |  |
Ki-67 | Â | Â | Â |
   <10% | 15 (68.2) | 260 (76.2) | 0.441 |
   ≥10% | 7 (31.8) | 81 (23.8) |  |