Table 3.
Characteristic | Odds Ratio | 95% CI | P-value |
---|---|---|---|
| |||
Pathologic tumor size (cm) (per unit) | 1.227 | 1.070–1.408 | .004 |
| |||
Histology | .03 | ||
IDC | Reference | - | |
ILC | 1.331 | 0.598–2.962 | |
mixed IDC/ILC | 0.336 | 0.149–0.756 | |
other | 0.463 | 0.090–2.379 | |
| |||
LVI | .14 | ||
present | 1.594 | 0.8292–2.279 | |
absent | Reference | ||
| |||
Number of SLN identified | 0.604 | 0.502–0.727 | <.001 |
| |||
Number of positive SLN | 2.120 | 1.486–3.026 | <.001 |
| |||
SLN maximum metastasis size (mm) | 1.136 | 1.076–1.199 | <.001 |
| |||
Extranodal extension | .01 | ||
present | 1.917 | 1.163–3.160 | |
absent | Reference |
Abbreviations: CI, confidence interval; IDC, invasive ductal carcinoma; ILC, invasive lobular carcinoma; LVI, lymphovascular invasion ; SLN, sentinel lymph node