Table 1. Association between Xist expression and clinicopathological factors of osteosarcoma patients.

Variables	Number of cases	Xist expression		P
		High (n=40)	Low(n=26)
Gender
Female	31	19	12	0.915
Male	35	21	14
Age(years)
≥20	35	22	13	0.691
<20	31	18	13
Tumor size
≤8cm	30	14	16
>8cm	36	26	10	0.034
Location
Tibia/femur	41	22	19
Elsewhere	25	18	7	0.139
Clinical stage
I/II	28	17	15
III	38	23	11	0.228
Distant metastasis
Absent	40	29	21
Present	16	11	5	0.444