Table 2. The relationship between miR-506-3p and osteosarcomas.

Variables	Description	No. of patient	miR-506-3p expression		χ2	P value
			Low High
Gender	Male	21	11	10	1.693	0.193
	Female	9	7	2
Age(years)	<20	18	12	6	0.064	0.800
	≥20	12	6	6
Family history	No Yes	24 6	14 4	10 2	0.139	0.709
TNM grade	IIA	14	5	9	7.232	0.027*
	IIB III	12 4	9 4	3 0