2.
Patient and tumor characteristics in relation to different molecular subtypes, n (%).
| Characteristics | Luminal A | Luminal B | HER2 | Triple-negative | P |
| Age, years | 0.9 | ||||
| <55 | 20 (46) | 12 (52) | 8 (53) | 13 (52) | |
| >55 | 24 (54) | 11 (48) | 7 (47) | 12 (48) | |
| Mitotic count | 0.3 | ||||
| <11 | 24 (55) | 12 (52) | 4 (26) | 8 (32) | |
| 11-22 | 18 (41) | 11 (48) | 10 (67) | 15 (60) | |
| > 22 | 2 (4) | 0 (0) | 1 (7) | 2 (8) | |
| Tumor grade | 0.005 * | ||||
| G1 | 20 (45) | 8 (35) | 4 (27) | 6 (24) | |
| G2 | 22 (50) | 9 (39) | 3 (20) | 11 (44) | |
| G3 | 2 (5) | 6 (26) | 8 (53) | 8 (32) | |
| Tumor size, cm | 0.7 | ||||
| <2 | 2 (5) | 1 (4) | 0 (0) | 2 (8) | |
| >2 | 42 (95) | 22 (96) | 15 (100) | 23 (92) | |
| Lymph node | 0.8 | ||||
| Negative | 12 | 6 (26) | 3 (20) | 5 (20) | |
| Positive | 32 (73) | 17 (74) | 12 (80) | 20 (80) | |
| Stage | 0.6 | ||||
| I | 0 (0) | 1 (5) | 0 (0) | 1 (4) | |
| II | 23 (52) | 9 (39) | 5 (33) | 11 (44) | |
| III | 21 (46) | 13 (56) | 10 (67) | 13 (52) | |
| Histological type | 0.8 | ||||
| IDC | 40 (91) | 22 (96) | 15 (100) | 24 (96) | |
| ILC | 3 (7) | 1 (4) | 0 (0) | 1 (4) | |
| Mucinous | 1 (2) | 0 (0) | 0 (0) | 0 (0) | |
| Ki-67 | 0.00 * | ||||
| <15% | 44 (100) | 7 (31) | 10 (66) | 10 (40) | |
| >15% | 0 (0) | 16 (69) | 5 (34) | 15 (60) | |
| Alive or dead | 0.6 | ||||
| Alive | 37 (84) | 17 (74) | 11 (73) | 19 (76) | |
| Dead | 7 (16) | 6 (26) | 4 (17) | 6 (24) | |
| Recurrence & metastasis | 0.3 | ||||
| Negative | 35 (80) | 14 (61) | 10 (60) | 17 (68) | |
| Positive | 9 (20) | 9 (39) | 5 (40) | 8 (32) |