Table 1.

Patients’ characteristics

Variable	Category
		n	%
Sex	Female	23	18.7
	Male	100	81.3
Age at diagnosis	≤ 60 years old	60	48.8
	> 60 years old	63	51.2
Alcohol consumption	≤ 20 years	24	19.5
	>20 years	99	80.5
Tobacco consumption	≤20 years	26	21.1
	>20 years	97	78.9
Clinical stagea	I	3	2.6
	II	26	22.8
	III	58	50.9
	IV	27	23.7
Histological grade *	Well differentiated	14	11.6
	Moderately differentiated	73	60.3
	Poorly differentiated	34	28.1
Surgery	No	102	82.9
	Yes	21	17.1
Radiotherapy	No	51	41.5
	Yes	72	58.5
Chemotherapy	No	45	36.6
	Yes	78	63.4
Progression	No	84	68.3
	Yes	39	31.7
Status	Death by cancer	93	75.6
	Alive	30	24.4
HPVa	Negative	75	86.2
	Positive	12	13.8
p16a	Negative	108	89.3
	Positive	13	10.7
p53a	Negative	37	31.4
	Positive	81	68.6

^aThere are missing values