Table 2.

The univariate analysis of factors for predicting the good response of chemotherapy.

Factors	n	OR	95%CI	p value
Age
≥ 46 years old	9	0.211	0.039–1.15	0.07
< 46 years old	40
Sex
Male	31	1.07	0.33–3.41	0.91
Female	18
Size
≥ 93 mm	15	3.73	0.98–14.2	0.05
< 93 mm	33
Location
Trunk	4	3.14	0.30–32.5	0.34
Extremity	45
Stage
III/IV	7	2.62	0.46–15.1	0.28
I/II	41
Subtype
Chondroblastic type	6	0.16	0.02–1.47	0.11
Other types	43
Osteoclast number
≥ 5	27	15.7	3.83–64.7	< 0.01
< 5	22
Course number
DOX
≥ 3	40	4.74	0.87–25.7	0.07
< 3	9
CDDP
≥ 3	41	9.88	1.11–87.9	0.04
< 3	8
IFO
≥ 4	7	1.33	0.27–6.7	0.73
< 4	42
MTX
≥ 1	5	0.61	0.09–4.01	0.61
< 1	44

DOX: doxorubicin, CDDP: cisplatin, IFO: ifosfamide, MTX: methotrexate, OR:odds ratio, CI: confidence intervals.