Table 2.

Univariate analysis of OS and CSS in the training cohort (n = 494).

Category	OS (Log-rank P)	CSS (Log-rank P)
Age at diagnosis (≤18 vs >18)	<.001	<.001
Gender (female vs male)	.556	.341
Location	.002	.001
appendicular vs axial	.001	<.001
appendicular vs other location	.135	.175
axial vs other location	.124	.078
Extent of disease	<.001	<.001
Distant vs localized	<.001	<.001
Distant vs regional	<.001	<.001
Regional vs localized	.208	.245
Tumor size	<.001	<.001
>10 cm vs <5 cm	<.001	<.001
>10 cm vs 5–10 cm	.051	.049
5–10 cm vs <5 cm	.004	.005
Surgical treatment (yes vs no)	<.001	<.001
Radiation treatment (yes vs no)	.053	.076