Table 5. Univariate analysis of mean disease-specific and overall survival (months) for patient demographics, tumor characteristics, and treatment groups (p < 0.05 in bold).

Patient and tumor factors		Disease-specific survival (mo)	p Value	Overall survival (mo)	p Value
Sex	Male	65	0.487	55	0.624
	Female	63	0.447	56	0.624
Primary subsite	Preauricular	54	0.222	45	0.165
	Scalp	69	0.454	60	0.697
	Temple	58	0.559	49	0.496
	Forehead	64	0.879	52	0.652
	Cheek	70	0.396	65	0.297
	Ear	60	0.497	51	0.369
	Eyebrow	68	0.584	62	0.586
	Postauricular	66	0.612	55	0.310
	Nose	60	0.333	50	0.586
	Midface	57	0.529	52	0.688
	Lip	70	0.686	72	0.724
	Neck	38	0.778	40	0.858
Histology	Squamous cell carcinoma	49	0.018	42	0.039
	Basal cell carcinoma	75	0.013	65	0.012
	Other	54	0.022	45	0.043
Prior treatments	Surgery	64	0.749	54	0.767
	Radiation	64	0.749	55	0.767
Immunosuppression	Yes	50	0.011	41	0.004
	No	71	0.011	58	0.004
Orbital invasion	Yes	48	0.007	40	0.009
	No	74	0.007	60	0.009
Route of skull base Invasion	Perineural zone II	73	0.023	68	0.038
	Perineural zone III	47	0.034	39	0.041
	Direct invasion	48	0.012	44	0.023
Cranial nerve	V involved	70	0.009	63	0.016
	VII involved	40	0.009	32	0.016
Treatment groups	Surgery alone	70	0.025	59	0.002
	Chemoradiation	26	0.038	17	0.018
	Surgery and radiation	69	0.021	60	0.008