Table 2.
Recurrence pattern
| Group 1 | Group 2 | Group 3 | Group 4 | ||
|---|---|---|---|---|---|
| Variables | IIA (n = 552) |
T2N0 LVI(+) (IB) (n = 109) |
T2N0 LVI(-) (IB) (n = 283) |
T1N1 (IB) (n = 285) |
p-value |
| Recurrence pattern | 0.008 | ||||
| No recurrence | 505 (91.5) | 102 (93.6) | 273 (96.5) | 279 (97.9) | |
| Locoregional recurrence | 5 (0.9) | 0 (0) | 1 (0.4) | 1 (0.4) | |
| Distant LNs | 5 (0.9) | 2 (1.8) | 1 (0.4) | 0 (0) | |
| Distant organs | 37 (6.7) | 5 (4.6) | 8 (2.8) | 5 (1.8) | |
| p-values of post hoc analyses | |||||
| vs. Group 1 | 0.493 | 0.051 | 0.002 | ||
| vs. Group 2 | 0.493 | 0.259 | 0.029 | ||
| vs. Group 3 | 0.051 | 0.259 | 0.669 | ||
| vs. Group 4 | 0.002 | 0.029 | 0.669 |
LVI, lymphovascular invasion; LN, lymph node