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Clinical and Biological tumor characteristics for the 226 study participants
| Characteristics | Number (%) |
|---|---|
| Age | 45 SD 14 |
| Age | |
| ≤ 50 years | 152 |
| > 50 years | 69 |
| Tumor stage | |
| I | 4 |
| II | 24 |
| III | 110 |
| IV | 31 |
| Missing | 57 |
| Histology | |
| Invasive ductal carcinoma | 198 |
| Lobular | 14 |
| Others | 12 |
| Missing | 2 |
| Tumor grade | |
| I | 16 |
| II | 57 |
| III | 149 |
| Missing | 4 |
| Tumor stage by setting | |
| Rural | |
| I | 0 |
| II | 12 |
| III | 40 |
| IV | 7 |
| Urban | |
| I | 4 |
| II | 9 |
| III | 36 |
| IV | 3 |
