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| Prognostic parameters | EGFR | P value | CK5 | P value | ||
|---|---|---|---|---|---|---|
| Positive | Negative | Positive | Negative | |||
| Age | ||||||
| ≤40 | 13 | 1 | >0.05 | 7 | 7 | >0.05 |
| 41–50 | 8 | 2 | 6 | 4 | ||
| >50 | 10 | 2 | 9 | 3 | ||
|
| ||||||
| Tumor size (cm) | ||||||
| ≤2 | 11 | 2 | >0.05 | 9 | 4 | >0.05 |
| 2.1–5 | 15 | 3 | 11 | 7 | ||
| >5 | 5 | 0 | 2 | 3 | ||
|
| ||||||
| Histopathological diagnosis | ||||||
| IDC, NOS | 24 | 5 | >0.05 | 17 | 12 | >0.05 |
| Mucinous carcinoma | 2 | 0 | 1 | 1 | ||
| Metaplastic carcinoma | 1 | 0 | 1 | 0 | ||
| Medullary carcinoma | 3 | 0 | 3 | 0 | ||
| Mixed ductal-lobular carcinoma | 1 | 0 | 0 | 1 | ||
|
| ||||||
| Tumour grades | ||||||
| Grade I | 4 | 1 | >0.05 | 2 | 3 | 0.052 |
| Grade II | 17 | 0 | 8 | 9 | ||
| Grade III | 10 | 4 | 12 | 2 | ||
