Analysis of the Role of Selective Neck Dissection in Clinically Node-Positive T3/T4 Oral Cancers

Table 1

Clinical and pathological demographics.

		Number of patients (%)
Age	<60	112 (83.6%)
	>60	22 (16.4%)
Sex	Male	119 (88.8%)
	Female	15 (11.2%)
Addiction	Smokeless tobacco	99 (73.9%)
	Smoking	65 (48.5%)
	Alcohol	60 (44.8%)
Comorbidities		62 (46.3%)
		72 (53.7%)
Subsite	Buccal mucosa	70 (52.2%)
	Tongue	29 (21.6%)
	Upper alveolus	02 (1.5%)
	Lower alveolus	23 (17.2%)
	Mucosal lip	06 (4.5%)
	Hard palate	01 (0.7%)
	Retro molar trigone	03 (2.2%)
cN stage	1	35 (26.1%)
	2	77 (57.5%)
	3	22 (16.4%)
Crossing midline	Yes	33 (24.6%)
	No	101 (75.4%)
Skin excision	Yes	75 (56%)
	No	59 (44%)
pT	T3	45 (31.3%)
	T4	89 (66.4%)
pN stage	0	51 (38.1%)
	1	25 (18.7%)
	2	39 (29.1%)
	3	19 (14.2)
Grade	Well differentiated	60 (44.8%)
	Moderately differentiated	73 (54.5%)
	Poorly differentiated	01 (0.7%)
DOI	<10 mm	18 (13.4%)
	>10 mm	116 (86.6%)
PNI	Present	23 (17.2%)
	Absent	111 (82.8%)
LVI	Present	18 (13.4%)
	Absent	116 (86.6%)
ENE	Present	22 (16.4%)
	Absent	112 (83.6%)
Bone involvement	Present	46 (34.3%)
	Absent	88 (65.7%)
Skin involvement	Present	56 (41.8%)
	Absent	78 (58.2%)

CCI: Charlson comorbidity index; DOI: depth of invasion; PNI: perineural invasion; LVI: lymphovascular invasion; ENE: extranodal extension.