Table 2.
Multivariate analysis of risk factors for lymph node metastasis.
| Parameters | B | SE | Wald | P | OR | 95% CI |
|---|---|---|---|---|---|---|
| ypT stage | ||||||
| I–II | 1.000 | |||||
| III–IV | 1.331 | 0.268 | 24.624 | <0.001 | 3.787 | 2.238–6.407 |
| TLNe | 11.808 | 0.019 | ||||
| ≤9 | 1.000 | |||||
| 10–13 | 1.042 | 0.372 | 7.855 | 0.005 | 2.836 | 1.368–5.879 |
| 14–16 | 1.218 | 0.403 | 9.119 | 0.003 | 3.379 | 1.533–7.448 |
| 17–24 | 0.702 | 0.385 | 3.324 | 0.068 | 2.017 | 0.949–4.287 |
| ≥25 | 1.030 | 0.380 | 7.357 | 0.007 | 2.801 | 1.331–5.897 |
| LVI | ||||||
| Negative | 1.000 | |||||
| Positive | 1.241 | 0.373 | 11.097 | 0.001 | 3.459 | 1.667–7.180 |
| Differentiation | 5.848 | 0.054 | ||||
| High | 1.000 | |||||
| Moderate | 0.548 | 0.688 | 0.634 | 0.426 | 1.730 | 0.449–6.665 |
| Low | 1.133 | 0.713 | 2.529 | 0.112 | 3.106 | 0.768–12.554 |
| Constant | −3.636 | 0.868 | 17.531 | <0.001 | 0.026 |
LVI: Lymphovascular invasion; TLNe: Total number of lymph nodes examined.