Table 1.
Patient demographics and treatment characteristics
| Characteristic | |
|---|---|
| Age, mean (SD), years | 57.9 (19.8) |
| Age, no. (%) | |
| <25 | 49 (7.1) |
| 25–50 | 170 (24.7) |
| >50 | 468 (68.1) |
| Gender, no. (%) | |
| Male | 389 (56.6) |
| Female | 298 (43.4) |
| Tumour presentation, no. (%) | |
| Primary | 555 (80.8) |
| ‘Whoops’* | 132 (19.2) |
| Tumour location, no. (%) | |
| Upper extremity | 162 (23.6) |
| Lower extremity | 525 (76.4) |
| Tumour size, mean (SD), cm | 10.0 (6.2) |
| Depth, no. (%) | |
| Deep | 531 (77.3) |
| Superficial | 115 (16.7) |
| Deep and superficial | 41 (6) |
| Histopathology, no. (%) | |
| Angiosarcoma | 19 (2.8) |
| MPNST† | 81 (11.8) |
| Myxofibrosarcoma | 217 (31.6) |
| Synovial sarcoma | 134 (19.5) |
| Spindle cell sarcoma | 165 (24.0) |
| Sarcoma NOS‡ | 17 (2.5) |
| MFH/UPS§ | 54 (7.9) |
| Surgical margin, no. (%) | |
| 0 mm | 114 (16.6) |
| ≤2 mm | 325 (47.3) |
| >2 mm | 248 (36.1) |
| Type of surgery, no. (%) | |
| Limb-sparing | 611 (88.9) |
| Amputation | 76 (11.1) |
| Radiotherapy, no. (%) | |
| Neoadjuvant | 154 (22.4) |
| Adjuvant | 359 (52.3) |
| No radiotherapy | 174 (25.3) |
| (Neo)Adjuvant chemotherapy, no. (%) | |
| Yes | 82 (11.9) |
| No | 605 (88.1) |
*Incomplete excision elsewhere prior to referral.
†Malignant peripheral nerve sheath tumour.
‡Not otherwise specified.
§Malignant fibrous histiocytoma/undifferentiated pleomorphic sarcoma.