Table 4. Multivariate overall survival analysis of NF1-MPNSTs.

Parameter	P-value	Hazard ratio	95% Hazard ratio confidence limits
ATRX(Aberrant vs. Retained)	0.0158	5.284	1.367	20.433
Margin Status (Positive vs. Negative)	0.0583	2.742	0.965	7.792
Metastasis at Diagnosis (Yes vs. No)	0.0009	11.863	2.758	51.026
Adjuvant or Neoadjuvant Treatment (Yes vs No)	0.6196	0.659	0.127	3.425
Age	0.6654	0.989	0.940	1.040
Tumor Size (<5 cm or >5 cm)	0.2236	1.088	0.950	1.246
Tumor location (extremity vs. non-extremity)	0.9895	0.990	0.228	4.306
Gender	0.9984	1.001	0.299	3.352