HPV Infection and Prognostic Factors of Tongue Squamous Cell Carcinoma in Different Ethnic Groups from Geographically Closed Cohort in Xinjiang, China

Table 2

The impact of HPV infection status on the prognosis of patients undergoing surgery or nonsurgical treatment.

Cases	3-year survival rate		5-year survival rate
	Surgery	Nonsurgery	Surgery	Nonsurgery
HPV-positive ()	85.9%	0%	52.7%	0%	0.872	0.350
HPV-negative ()	70.4%	57.1%	42.0%	0%	2.203	0.138

Among 18 patients of HPV-positive patients, 17 patients had surgery, 1 patient did not have surgical treatment; among 45 patients of HPV-negative patients, 38 patients had surgery, 7 patients did not have surgical treatment.