Table 1. Correlation between TTN-AS1 expression and clinicopathological features in OS patients.

Characteristics	Total number	TTN-AS1 expression		P value
		Low (n=29)	High (n=26)
Age (years)				0.651
<18	11	4	7
≥18	44	25	19
Gender				0.090
Male	36	16	20
Female	19	13	6
Tumor site				0.385
Femur/ Tibia	18	11	7
Other	37	18	19
Enneking stage				0.041
I-II-A	39	24	15
II-B/IVB	16	5	11
Lymph node metastasis				0.014
Absent	47	28	19
Present	8	1	7