Table 2.
Failure patterns of the entire population
| LFI group (n = 210) | SFI group (n = 191) | p-value | |
|---|---|---|---|
| Failure patterns | 0.010 | ||
| Local recurrence | 18(8.6%) | 26(13.6%) | |
| Distant metastasis | 60(28.6%) | 43(22.5%) | |
| Both | 9(4.3%) | 13(6.8%) | |
| UN | 5(2.4%) | 0 | |
| Locoregional recurrence | 0.013 | ||
| Locoregional recurrence | 27(12.9%) | 39(20.4%) | |
| non-LR | 65(31.0%) | 43(22.5%) | |
| Local recurrence | 0.022 | ||
| In-field only | 17(8.1%) | 11(5.8%) | |
| Out-field only | 10(4.8%) | 27(14.1%) | |
| Both | 1(0.5%) | 2(1.0%) | |
| Distant metastasis (DM) | 0.326 | ||
| DM | 69(32.9%) | 56(29.3%) | |
| non-DM | 23(11.0%) | 26(13.6%) |
Abbreviation: LFI large-field irradiation, SFI small-field irradiation, LN lymph nodes, LR locoregional recurrence, DM distant metastasis, UN unknown