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