Table 1.
Distribution of histopathological grade and TNM stage among the various breast cancer subtype
| Total cases | Luminal A | Luminal B | HER2+ luminal B | Triple negative | non-luminal HER2+ | P vaules | |
|---|---|---|---|---|---|---|---|
|
|
|||||||
| N (%) | N (%) | N (%) | N (%) | N (%) | N (%) | N (%) | |
| Total (n (%)) | 475 (100) | 169 (35.6) | 107 (22.5) | 62 (13.1) | 72 (15.2) | 65 (13.7) | |
| Histologic grade | |||||||
| I | 166 (34.9) | 122 (72.7) | 25 (23.4) | 13 (21.0) | 4 (5.6) | 2 (3.1) | <0.001 |
| II | 188 (39.6) | 47 (27.8) | 62 (57.9) | 34 (54.8) | 18 (25.0) | 27 (41.5) | |
| III | 121 (25.5) | 0 (0) | 20 (18.7) | 15 (24.2) | 50 (69.4) | 36 (55.4) | |
| Tumor stage | |||||||
| 0 | 61 (12.8) | 30 (17.8) | 6 (5.6%) | 11 (17.7%) | 2 (2.8%) | 12 (18.5%) | <0.001 |
| I A | 109 (22.9) | 48 (28.4%) | 21 (19.6%) | 12 (19.4%) | 16 (22.2%) | 12 (18.5%) | |
| I B | 77 (16.2) | 30 (17.8%) | 20 (18.7%) | 8 (12.9%) | 12 (16.7%) | 7 (10.8%) | |
| II A | 120 (25.3) | 33 (19.5%) | 31 (29.0%) | 16 (25.8%) | 27 (37.5%) | 13 (20.0%) | |
| II B | 52 (10.9) | 10 (5.9%) | 19 (17.8%) | 9 (14.5%) | 7 (9.7%) | 7 (10.8%) | |
| III A | 24 (5.1) | 7 (4.1%) | 5 (4.7%) | 3 (4.8%) | 4 (5.6%) | 5 (7.7%) | |
| III B | 17 (3.6) | 6 (3.6%) | 2 (1.9%) | 2 (3.2%) | 2 (2.8%) | 5 (7.7%) | |
| III C | 12 (2.5) | 3 (1.8%) | 2 (1.9%) | 1 (1.6%) | 2 (2.8%) | 4 (6.2%) | |
| IV | 3 (0.6) | 2 (1.2%) | 1 (0.9%) | 0 (0) | 0 (0) | 0 (0) | |