Table 2.
Results of the Multivariate Analysis of the Risk of Non-SLN Metastasis.
| Variable | Coefficient | SE | Wald | P | OR | 95% CI | |
|---|---|---|---|---|---|---|---|
| Lower | Upper | ||||||
| Primary tumor size (versus T1) | 7.912 | .019 | |||||
| T2 | 0.421 | 0.298 | 1.997 | .158 | 1.523 | 0.850 | 2.732 |
| T3 | 2.191 | 0.827 | 7.022 | .008 | 8.942 | 1.769 | 45.206 |
| Number of metastatic SLN | 0.428 | 0.147 | 8.497 | .004 | 1.534 | 1.151 | 2.046 |
| Proportion of metastatic SLN/total SLN | 1.583 | 0.487 | 10.588 | .001 | 4.871 | 1.877 | 12.640 |
| Constant | −2.208 | 0.393 | 31.528 | .000 | 0.110 | ||
Abbreviations: CI, confidence interval; OR, odds ratio; SLN, sentinel lymph node.