Table 2. Univariate and multivariate analyses of clinicopathological variables affecting disease-free survival in invasive lobular carcinoma.
| Parameters | Univariate analysis | Multivariate analysis | ||
|---|---|---|---|---|
| HR (95% CI) | p-value | HR (95% CI) | p-value | |
| CD9 expression, positive vs. negative | 4.472 (1.208–16.549) | 0.025 | 3.745 (1.007–13.926) | 0.049 |
| Tumor size, > 2 cm vs. ≤ 2 cm | 2.621 (1.068–6.430) | 0.035 | - | - |
| LN metastasis, present vs. absent | 4.547 (1.777–11.638) | 0.002 | - | - |
| LVI, present vs. absent | 2.710 (1.175–6.253) | 0.019 | 4.938 (1.329–18.351) | 0.017 |
HR = hazard ratio; CI = confidence interval; LN = lymph node; LVI = lymphovascular invasion.