Table 1. Patient characteristics for the MF and RS groups.

	MF (n = 305)	RS (n = 72)	Statistical significance
Age (y, mean [SD])	48.9 (10.4)	47.4 (10.7)	NS
Sex (% male)	51.8%	40.3%	NS (p ≤ 0.089)
Ear (% right)	45.2%	48.6%	NS
Tumor size (cm, mean [SD])	1.0 (0.36)	1. 8 (0.38)	p ≤ 0.001
Duration Sx (mo, mean [SD])	18.1 (30.0)	18.0 (28.46)	NS
Presenting symptoms
Hearing loss	83.9%	75.0%	NS (p ≤ 0.09)
Dizzy	41.0%	25.0%	0.015
Tinnitus	77.0%	73.6%	NS
Headache	16.7%	27.8%	p ≤ 0.043
Paresthesia	0.7%	2.8%	NS

Abbreviations: MF, middle fossa; NS, not significant; RS, retrosigmoid; SD, standard deviation; Sx, symptoms.