Table 1. Patient characteristics and lesion pathology by location of skull base defect following tumor resection.

	Autograft	Xenograft	p -Value
Patient characteristics
Number of subjects	56 (72.7%)	21 (27.3%)
Age (y), median (IQR)	49 (37–60)	47 (45–62)	0.583
BMI, median (IQR)	27.7 (26–32)	27.7 (26–30)	0.67
Time to last follow-up, median (IQR)	15 (11–26)	14 (12–27)	0.16
Tumor characteristics
Tumor size (cm), mean (STD)	2.2 (0.8)	2.5 (1.2)	0.16
Vestibular schwannoma	54 (96.4%)	18 (85.7%)
Epidermoid	0	2 (9.5%)
Meningioma	0	1 (4.8%)
FN schwannoma	2 (3.6%)	0
Other	0

Abbreviations: BMI, body mass index; FN, facial nerve; IQR, interquartile range; STD, standard deviation.

Note: Denominators of all percentages reflect number of subjects by approach and graft type listed in the given columns.