Table 3.
Univariate analysis of disease-free survival.
| Characteristics | No. (%) | 5-Year DFS | p Value | |
|---|---|---|---|---|
| T stage | T1 | 569 (50.7) | 97.1 | <0.001 |
| T2–4 | 552 (49.2) | 90.2 | ||
| Number of | Single | 933 (83.2) | 93.9 | 0.953 |
| tumors | Multiple | 188 (16.8) | 93.1 | |
| Resection | ≥1 mm | 1033 (92.1) | 93.8 | 0.634 |
| margin | <1 mm | 81 (7.2) | 92.5 | |
| EIC | (−) | 569 (50.8) | 94.8 | 0.213 |
| (+) | 266 (23.7) | 91.8 | ||
| LVI | (−) | 441 (39.3) | 97.0 | 0.001 |
| (+) | 631 (56.3) | 91.4 | ||
| HG | I or II | 687 (61.3) | 96.1 | <0.001 |
| III | 416 (37.1) | 89.9 | ||
| LNR | ≤0.10 | 788 (70.3) | 94.9 | 0.010 |
| >0.10 | 331 (29.5) | 90.8 | ||
| ECE | (−) | 461 (41.1) | 92.7 | 0.110 |
| (+) | 532 (47.5) | 94.9 | ||
| Molecular | Lumimal A | 463 (41.3) | 96.0 | 0.008 |
| Subtype | Non-luminal A | 657 (58.6) | 82.1 | |
Abbreviations: EIC, extensive intraductal component; LVI, lymphovascular invasion; HG, histologic grade; LNR, lymph-node ratio; ECE, extracapsular extension.