Table 1.

Subject characteristics and chemotherapy response of osteosarcoma

Characteristics	Total (n = 52)	Huvos Grade 1 (n = 21)	Huvos Grade 2 (n = 25)	Huvos Grade 3 (n = 6)	p-value
Gender
Male	30 (57.7%)	10 (19.2%)	15 (28.8%)	5 (9.8%)	0.458
Female	22 (42.3%)	11 (22.1%)	10 (19.2%)	1 (1.9%)
Age (year)
0–9	4 (7.7%)	2 (3.8%)	2 (3.8%)	0	0.469
10–19	38 (73.0%)	12 (23.0%)	20 (38.4%)	6 (11.5%)
20–29	9 (17.3%)	6 (11.5%)	3 (5.7%)	0
30–39	1 (2.0%)	1 (1.9%)	0	0
40–49	0	0	0	0