Table 2.

Univariate analysis of clinicopathological features for overall survival of osteosarcoma patients

Clinicopathological features	Univariate analysis
	Hazard ratio	95% CI	P
Gender	1.316	0.518-3.182	0.373
Male vs. Female
Age (years)	0.975	0.593-2.861	0.406
≥25 vs. <25
Tumor size	2.137	0.759-6.068	0.098
≥8 cm vs. <8 cm
Anatomic location	1.134	0.665-3.672	0.184
Elsewhere vs. Tibia/femur
Clinical stage	2.945	1.815-6.963	0.004
III vs. I/II
Distant metastasis	3.716	2.183-8.476	0.002
Presence vs. Absence
MEG3	2.735	1.573-7.718	<0.001
Low vs. High