Infectious Agents and Cancer

Table 1 Patients’ characteristics

From: HPV infection and p53 and p16 expression in esophageal cancer: are they prognostic factors?

Variable	Category
Variable	Category	n	%
Sex	Female	23	18.7
Sex	Male	100	81.3
Age at diagnosis	≤ 60 years old	60	48.8
Age at diagnosis	> 60 years old	63	51.2
Alcohol consumption	≤ 20 years	24	19.5
Alcohol consumption	>20 years	99	80.5
Tobacco consumption	≤20 years	26	21.1
Tobacco consumption	>20 years	97	78.9
Clinical stage^a	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
Surgery	Yes	21	17.1
Radiotherapy	No	51	41.5
Radiotherapy	Yes	72	58.5
Chemotherapy	No	45	36.6
Chemotherapy	Yes	78	63.4
Progression	No	84	68.3
Progression	Yes	39	31.7
Status	Death by cancer	93	75.6
Status	Alive	30	24.4
HPV^a	Negative	75	86.2
HPV^a	Positive	12	13.8
p16^a	Negative	108	89.3
p16^a	Positive	13	10.7
p53^a	Negative	37	31.4
p53^a	Positive	81	68.6

^aThere are missing values

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ISSN: 1750-9378

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