Table 2. Recurrence-free and overall survival at 3 and 5 years.
| Characteristic | No. of patients (%) | Median overall survival (months) | Median recurrence-free survival (months) | Overall survival (%) | Recurrence-free survival (%) | ||
|---|---|---|---|---|---|---|---|
|
|
|
||||||
| 3 years | 5 years | 3 years | 5 years | ||||
| Age | |||||||
| <70 years | 41 (47 %) | 55.0 | 28.4 | 65.8 | 43.9 | 47.5 | 39.6 |
| ≥70 years | 47 (53 %) | 34.0 | 21.0 | 45.3 | 27.7 | 34.5 | 25.9 |
| Tumor size | |||||||
| <5 cm | 48 (62 %) | 55.0 | 28.0 | 64.5 | 48.4 | 42.6 | 42.6 |
| ≥5 cm | 30 (38 %) | 26.3 | 7.0 | 34.6 | 11.5 | 36.5 | 24.3 |
| Margin status | |||||||
| + | 18 (24 %) | 20.6 | 28.0 | 34.7 | 34.7 | 28.6 | 28.6 |
| − | 58 (76 %) | 52.8 | 25.4 | 64.3 | 37.9 | 43.8 | 33.4 |
| Tumor presentation | |||||||
| Spontaneous head and neck | 38 (43 %) | 35.5 | 25.4 | 49.3 | 21.5 | 33.7 | 0 |
| Spontaneous trunk/extremities | 13 (15 %) | NEa | NEa | 64.8 | 64.8 | 60.0 | 60.0 |
| Stewart–Treves syndrome | 7 (8 %) | 38.4 | 6.4 | 66.7 | NEa | 0 | 0 |
| XRT-induced | 30 (34 %) | 55.0 | 54.5 | 59.3 | 49.4 | 58.0 | 46.4 |
| Local treatment modality | |||||||
| Surgery + XRT | 41 (47 %) | 37.3 | 16.9 | 58.4 | 30.9 | 27.9 | 27.9 |
| Surgery only | 36 (41 %) | 59.5 | 41.4 | 60.2 | 46.9 | 59.8 | 39.9 |
| XRT only | 7 (8 %) | 23.6 | NEa | 33.3 | 16.7 | – | – |
a
Unable to be estimated because of small percentage of events (i.e., deaths) in sample