Table 2. Univariate analysis of various potential prognostic factors for lung metastasis-free rates in patients with angiosarcoma of the scalp or face.
| Parameter | No. of patients | Univariate analysis |
|
| LMF, 1-year rate (%) | p-value | ||
| Age (years) | |||
| <80 | 29 | 36.1 | 0.9358 |
| ≥80 | 19 | 11.8 | |
| Gender | |||
| Female | 19 | 41.1 | 0.8036 |
| Male | 29 | 34.2 | |
| Tumour size (cm) | |||
| <5 | 22 | 29 | 0.1138 |
| ≥5 | 26 | 44.5 | |
| ECOG performance status | |||
| 0–1 | 28 | 47.0 | 0.0099 |
| 2–3 | 20 | 20.0 | |
| Ulceration in primary tumour | |||
| Yes | 17 | 43.8 | 0.0883 |
| No | 31 | 17.7 | |
| Nodule in primary tumour | |||
| Yes | 37 | 36.4 | 0.2075 |
| No | 11 | 8.2 | |
| Tumour site | |||
| Scalp | 46 | 34.7 | 0.6940 |
| Face | 2 | 0 | |
| Clinically positive neck lymph nodes | |||
| Negative | 45 | 36.8 | 0.9610 |
| Positive | 3 | 33.3 | |
| Tumour number | |||
| Single | 28 | 54.7 | 0.0034 |
| Multifocal | 20 | 6.9 | |
ECOG, Eastern Cooperative Oncology Group; LMF, lung metastasis-free.