Table 1. Clinical characteristics of OS patients.

Clinical characteristics	No. of patients	Percentages (%)
Gender
Male	36	57.14
Female	27	42.86
Age (years)
≤25	55	87.30
>25	8	12.70
Tumor diameter (cm)
≤5	37	58.73
>5	26	41.27
TNM stage
I + II	25	39.68
III + IV	38	60.32
Metastasis or recurrence
Yes	37	58.73
No	26	41.27
Differentiation
Well and moderate	31	49.21
Poor	32	50.79