Table 1.
Patient characteristics
| Characteristic | N | % |
|---|---|---|
| Gender | ||
| Male | 63 | 41% |
| Female | 89 | 59% |
| KPS at recurrence | ||
| <80% | 31 | 20% |
| ≥80% | 121 | 80% |
| Surgical Margin Status | ||
| Negative | 141 | 93% |
| Positive or unknown | 11 | 7% |
| Histology | ||
| Adenocarcinoma | 99 | 65% |
| Squamous cell | 44 | 29% |
| Other | 9 | 6% |
| Initial Stage | ||
| I | 84 | 55% |
| II | 29 | 19% |
| III | 39 | 26% |
| Recurrent Stage | ||
| I | 34 | 22% |
| II | 31 | 20% |
| III | 87 | 57% |
| Location of Recurrence | ||
| Lung only | 58 | 38% |
| Nodal only | 52 | 34% |
| Lung and nodal | 42 | 28% |
| Chemotherapy At Surgery | ||
| Yes | 43 | 28% |
| No | 109 | 72% |
| Chemotherapy For Recurrence | ||
| Yes (concurrent=32, sequential=28) | 60 | 39% |
| No | 92 | 61% |
| RT Technique | ||
| 3D/Conventional | 73 | 48% |
| IMRT | 60 | 39% |
| SBRT | 19 | 13% |
| RT Technique by Recurrent Stage | ||
| Recurrent Stage I | ||
| 3D/Conventional | 12 | 35% |
| IMRT | 6 | 18% |
| SBRT | 16 | 47% |
| Recurrent Stage II | ||
| 3D/Conventional | 13 | 42% |
| IMRT | 16 | 52% |
| SBRT | 2 | 6% |
| Recurrent Stage III | ||
| 3D/Conventional | 48 | 55% |
| IMRT | 38 | 44% |
| SBRT | 1 | 1% |
| RT Dose (non-SBRT patients) | ||
| ≤60Gy | 117 | 77% |
| <60Gy | 16 | 11% |