Clinical Study
Survival in Malignant Peripheral Nerve Sheath Tumours: A Comparison between Sporadic and Neurofibromatosis Type 1-Associated Tumours
Table 1
Univariate analysis to determine factors significant for survival in
patients without metastases at diagnosis.
| Factor | NF1 | Sporadic | All patients | 5 year survival (%) | P | 5 year survival (%) | P | 5 year survival (%) | P |
| Stage | 1 | 100 | | 100 | | 100 | | 2 | 46.2 | .375 | 76.1 | .079 | 71.1 | .033 |
| Site | Lower limb | 55.6 | | 69.4 | | 66.7 | | Upper limb | 100 | | 83.3 | | 90.9 | | Brachial
plexus | 42.9 | | 75.0 | | 68.4 | | Sciatic plexus | 50.0 | .139 | 100 | .035 | 88.9 | .036 |
| Volume | 200 ml | 57.1 | | 85.7 | | 82.9 | | 200 ml | 50.0 | .119 | 66.7 | .015 | 63.6 | .002 |
| Grade | Low | 44.4 | | 74.2 | | 70.0 | | High | 50.0 | .862 | 79.2 | .713 | 73.4 | .606 |
| Depth | Subcutaneous | 50.0 | | 90.0 | | 83.3 | | Deep | 50.0 | .372 | 76.1 | .755 | 72.2 | .571 |
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