Regional metastasis to anatomies beyond traditional neck dissection boundaries: a multi-institutional analysis focused on unconventional metastases in oral cancer patients

Table 6 Factors related to the various locations of SCCOCs

Value A	Value B	P values
Buccal mucosa	Unconventional metastatic subsites	< 0.001
Tongue	Unconventional metastatic subsites	0.024
Tongue	Number of metastatic lymph nodes	0.002
Floor of mouth	None*
Upper gingiva	Histories of smoking or alcohol	0.013
	Unconventional metastatic subsites	0.007
	ENE in UMLNs	0.029
	ENE in cervical lymph nodes	0.025
Retromolar trigone	Unconventional metastatic subsites	0.018
Lip	Unconventional metastatic subsites	0.002
Lip	Gender	0.013
Hard palate	None*
Lower gingiva	None*

ISSN: 1477-7819