Table 3. Associations between HULC expression and clinicopathological characteristics of the OS patients.

		HULC expression
		Low expression		High expression
		N	%	N	%	p-value
Age at diagnosis (years)	< 10	06	28.6	0	0.0	0.065
	≥ 10	15	71.4	12	100.0
Gender	female	11	52.4	06	50.0	0.999
	male	10	47.6	06	50.0
Tumor site	Femur	06	28.6	06	50.0	0.274
	Other	15	71.4	06	50.0
Histological type	Osteoblastic	13	68.4	11	91.7	0.201
	Other	06	31.6	01	8.3
Huvos grade	Grade 1/2	13	72.2	08	66.7	0.999
	Grade 3/4	05	27.8	04	33.3
Tumor size (cm)	<12	07	58.3	04	44.4	0.670
	≥12	05	41.7	05	55.6
Metastasis (during treatment)	no	15	71.4	08	66.7	0.999
	yes	06	28.6	04	33.3