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Multivariable survival analysis
| Variables | HR | 95% CI | p-value |
|---|---|---|---|
| Tumor Size | 0.014 | ||
| < 3 cm | - | - | |
| ≥ 3 cm | 1.67 | 1.11–2.51 | |
|
| |||
| Lymph node Status | |||
| Negative | - | - | - |
| 1–3 positive nodes | 1.81 | 1.12–2.87 | 0.014 |
| >3 positive nodes | 2.51 | 1.50–4.24 | 0.001 |
|
| |||
| Ki-67 | 1.08 | 1.05–1.10 | <0.001 |
|
| |||
| Invasion of Adjacent Organs | |||
| Absent | - | - | |
| Present | 1.65 | 1.03–2.65 | 0.038 |
