Table 1.
Baseline clinicopathologic characteristics of breast cancer participants
| Feature | No. of patients (%) n=522 |
|---|---|
| Age group | |
| <40 | 69 (13.2) |
| 40-49 | 144 (27.6) |
| 50-59 | 188 (35.9) |
| 60-69 | 86 (16.5) |
| ≥70 | 35 (6.7) |
| Age | |
| Young (≤40 Y-O) | 81 (69.8) |
| Older (≥70 Y-O) | 35 (30.2) |
| Tumor location | |
| Right | 234 (44.8) |
| Left | 285 (54.6) |
| Bilateral | 3 (0.6) |
| Tumor size (cm) | |
| ≤2 | 261 (50.0) |
| >2-5 | 242 (46.4) |
| >5 | 19 (3.6) |
| pTNM stage | |
| I | 134 (25.7) |
| II | 306 (58.6) |
| III | 82 (15.7) |
| Risk category | |
| Low | 24 (4.6) |
| Intermediate | 359 (68.8) |
| High | 139 (26.6) |
| Outcome | |
| Die | 24 (12.3) |
| Survival | 171 (87.7) |
| Recurrence | |
| No Relapse | 192 (98.5) |
| Relapse | 3 (1.5) |
| Histopathologic type | |
| Invasive ductal, NOS | 374 (71.6) |
| Mucinous | 16 (3.1) |
| Lobular | 89 (17.0) |
| Other | 43 (8.2) |
| Histologic grade | |
| I | 56 (10.7) |
| II | 190 (36.4) |
| III | 276 (52.9) |
| Lymph node status | |
| Negative | 330 (63.2) |
| 1-3 positive node (s) | 121 (23.2) |
| >3 positive nodes | 71 (13.6) |
| Nottingham PI | |
| Good | 122 (23.4) |
| Moderate | 281 (53.8) |
| Poor | 119 (22.8) |
| LVI | |
| Negative | 337 (64.6) |
| Positive | 185 (35.4) |
| Tumor necrosis | |
| Negative | 429 (82.2) |
| Positive | 93 (17.8) |
| Ki67 index | |
| Low (≤20%) | 271 (51.9) |
| High (>20%) | 251 (48.1) |