Table 2. Univariate analysis of risk factors of local recurrence after skull base surgery.

		3 Years LCR	p value
Location of primary tumor	Nasal/Paranasal cavity	53%	0.84
	Orbitae/Others	71%
Age	< 20 years old	67%	0.99
	≥ 20 years old	62%
Tumor size at the time of surgery	< 50 mm	63%	0.91
	≥ 50 mm	67%
Cranial fossa invasion	Negative	67%	0.87
	Positive	67%
Dural invasion	Negative	70%	0.44
	Positive	50%
Chemosensitivity	Chemosensitive sarcoma	63%	0.59
	Chemoresistant sarcoma	67%
Type of skull base surgery	With craniotomy	67%	0.87
	Without craniotomy	67%
Pathological surgical margin status	Margin negative/micro margin positive	83%	0.014
	Wide margin positive	25%

Abbreviation: LCR, local control rate.