TABLE 2:

Clinical Features of UCSF and WUSTL Case Cohorts

	UCSF Cohort			WUSTL Cohort
	Malignant Peripheral Nerve Sheath Tumor	Cellular Schwannoma	p*	Malignant Peripheral Nerve Sheath Tumor	Cellular Schwannoma	p*	p**
Gender; Male (%)	17 (43%)	6 (50%)	0.75	33 (44%)	6 (43%)	0.83	0.55
Age, years^	37.5	44.7	0.14	38.3	46	0.6	0.52
median (range)	(11.2-71.8)	(13.8-70.3)		(0.1-81.6)	(16-70)
<40 years old (%)	23 (58%)	5 (42%)	0.51	39 (52%)	6 (43%)	0.57	0.73
NF 1 (%)	25 (64%)	0	<0.0001	26 (72%)	1# (7%)	<0.0001	0.31
NF 2 (%)	0	1 (8%)		0	1# (7%)
Size, cm^	8.8 (0.5-26)	4.8 (1-9.8)	0.005
Site; Extremity (%)	12 (30%)	0	0.047	22 (31%)	3 (21%)	0.75	0.55

UCSF: University of California San Francisco; WUSTL: Washington University in St. Louis;

^*:p value belongs to comparisons between MPNSTs and CSs;

^**:p value belongs to comparisons between two institutions;

^{^:}Values are median (range);

^#:Type of Neurofibromatosis is unclear from medical records; NF: Neurofibromatosis; p values in bold are statistically significant.