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Comparative analysis of the features of invasive breast carcinoma in women aged <40 and ≥40 yrs
| Women <40 yrs | Women ≥40 yrs | p value | |
|---|---|---|---|
| Mean Tumor Size (cm) | 1.99 | 1.62 | <0.0001 |
| High Grade (%) | 79.5% | 63.2% | <0.0001 |
| ER+ (%) | 68% | 80% | <0.0001 |
| HER2+ (%) | 24.3% | 14.8% | <0.0001 |
| TNBC (%) | 21.6% | 13% | <0.0001 |
| Stage IV at presentation | 6.1% | 4.4% | 0.0004 |
