Variables | Patients (n = 99, %) | Initial treatment | P value | |
---|---|---|---|---|
Local treatment (n = 60, 60.6%) | Observation/medical treatment (n = 39, 39.4%) | |||
Age at diagnosis (years) | ||||
 Median | 38.2 | 39.4 | 36.1 | 0.670 |
 IQR | 25.4–47.7 | 25.5–50.8 | 23.8–44.3 |  |
Sex | ||||
 Male | 37, 37.4% | 23, 38.3% | 14, 35.9% | 0.806 |
 Female | 62, 62.6% | 37, 61.7% | 25, 64.1% |  |
Tumor site | ||||
 Abdominal wall | 4, 4.0% | 2, 3.3% | 2, 5.1% | 0.901c |
 Upper extremity | 10, 10.1% | 9, 15.0% | 1, 2.6% |  |
 Lower extremity | 39, 39.4% | 21, 35.0% | 18, 46.2% |  |
 Girdle | 31, 31.3% | 20, 33.3% | 11, 28.2% |  |
 Head and neck | 6, 6.1% | 2, 3.3% | 4, 10.3% |  |
 Chest wall | 9, 9.1% | 6, 10.0% | 3, 7.7% |  |
Tumor size (cm) | ||||
 Median | 8 | 7 | 9 | 0.045a |
 IQR | 5–11 | 5–10 | 6–13 |  |
Clinical presentation | ||||
 Mass | 42, 42.4% | 23, 38.3% | 19, 48.7% | 0.308d |
 Pain | 7, 7.1% | 3, 5.0% | 4, 10.3% |  |
 Mass + Pain | 46, 46.5% | 33, 55.0% | 13, 33.3% |  |
 Functional impairment | 2, 2.0% | 0 | 2, 5.1% |  |
 Functional impairment + Pain | 2, 2.0% | 1, 1.7% | 1, 2.6% |  |
Previous surgery or trauma at the site of the primary tumor | ||||
 Yes | 14, 14.1% | 9, 15.0% | 5, 12.8% | 0.721b |
 No | 85, 85.9% | 51, 85.0% | 34, 87.2% |  |
Year of diagnosis | ||||
 1999–2009 | 61, 61.6% | 48, 80.0% | 13, 33.3% | < 0.001a |
 2010–2018 | 38, 38.4% | 12, 20.0% | 26, 66.7% |  |