Table 1. Significance of factors influencing overall survival, disease-specific survival, and locoregional control.

	OS	DSS	LRC
Sex	NS	NS	NS
Race	NS	NS	NS
Smoking status	p = 0.013 (worse survival for smokers)	NS	NS
Tumor subsite	NS	NS	NS
Primary/Reoperation	NS	NS	NS
Stage	< 0.05 (worse survival for stage IV)	< 0.05 (worse survival for stage IV)	NS
Additional margins	NS	NS	NS
Presence of malignancy	p < 0.001	p < 0.001	NS

Abbreviations: DSS, disease-specific survival; LRC, locoregional control; NS, not significant; OS, overall survival.