1.

The patient characteristics of the two groups

Characteristics	Regimen A (n = 272)	Regimen B (n = 58)	P
Gender			0.550
Male	180	36
Female	92	22
Age, years			0.707
< 10	36	5
10–20	168	39
21–30	43	10
> 30	25	4
Location			0.669
Extremity	266	56
Pelvis	5	2
Other	1	0
Tumor volume (cm3)			0.353
< 150	170	40
≥ 150	102	18
Tumor margin			0.993
Radical	5	1
Wide	252	54
Marginal	15	3
Surgery			0.796
Limb salvage	226	49
Amputation	46	9