Table 1.

Correlation of microRNA-409 expression with clinicopathological feature of osteosarcoma.

Variables	Case number	microRNA-409 expression		P
		Low	High
Sex				0.961
Male	31	17	14
Female	18	10	8
Age (years)				0.804
< 20∗	21	12	9
≥ 20	28	15	13
Tumor size (cm)				0.851
< 8	26	14	12
≥ 8	23	13	10
Clinical stage				0.035∗
I-II	23	9	14
III-IV	26	18	8
Distant metastasis				0.030∗
Present	24	17	7
Absent	25	10	15

^∗These participants were above 16 years age. ^∗P < 0.05.