Table 2.
The details on event distribution between groups
| Recurrence site | Group 1
|
Group 2
|
Group 3
|
|||
|---|---|---|---|---|---|---|
| ≤4 months (n=78) (%) | >4 months (n=262) (%) | ≤5 months (n=204) (%) | >5 months (n=136) (%) | ≤6 months (n=285) (%) | >6 months (n=55) (%) | |
| LRR (single site) | ||||||
| Chest wall | 1 (1.3) | 12 (4.6) | 8 (3.9) | 5 (3.7) | 9 (3.2) | 4 (7.3) |
| Supra-/infraclavicular lymph node | 3 (3.8) | 6 (2.3) | 5 (2.5) | 4 (2.9) | 9 (3.2) | 0 (0) |
| Internal mammary lymph node | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) |
| Axillary lymph node | 2 (2.5) | 2 (0.7) | 3 (1.5) | 1 (0.7) | 3 (1.1) | 1 (1.8) |
| LRR (≥2 LRR sites) | 3 (3.8) | 7 (2.7) | 8 (3.9) | 2 (1.5) | 10 (3.5) | 0 (0) |
| Distant metastasis | 27 (34.6) | 89 (34.0) | 75 (36.8) | 41 (30.1) | 100 (35.1) | 16 (29.1) |
Abbreviation: LRR, locoregional recurrence.