Table 3.
Factors associated with ipsilateral breast tumor recurrence.
| Variable | Hazard ratio (95% CI) | P |
|---|---|---|
| Age: ≥50 versus <50 | 0.63 (0.08–5.19) | 0.67 |
| Age: ≥60 versus <60 | 0.55 (0.13–2.32) | 0.42 |
| Tumor size: >2 cm versus ≤2 cma | 2.20 (0.25–19.75) | 0.48 |
| Tumor type: ILC versus other | 1.89 (0.23–15.41) | 0.55 |
| Tumor type: DCIS versus invasive cancer | 1.61 (0.38–6.75) | 0.52 |
| ER status: negative versus positivea | 5.87 (0.97–35.34) | 0.053 |
| Margins: negative versus close/positive | 7.63 (1.45–40.0) | 0.016 |
| Multifocality: yes versus no | 2.36 (0.28–19.99) | 0.43 |
| LVI: present versus nonea,b | — | 0.60 |
| Nodal status: positive versus negativea,b | — | 1.0 |
CI: confidence interval, ILC: invasive lobular carcinoma, DCIS: ductal carcinoma in situ, ER: estrogen receptor, and LVI: lymphovascular invasion.
aExcludes DCIS.
bCox proportional hazards model could not be performed due to lack of events.