. 2017 Nov 25;8(65):109393–109401. doi: 10.18632/oncotarget.22682

Table 3. Comparison of oral rinse results with tumor status: total oropharynx and subsite-specific results shown.

Total oropharynx		Tumor p16 status		Total
Total oropharynx		Positive	Negative	Total
Oral rinse Results of HPV PCR	HPV16 or HPV18 Positive	32	2	34
Oral rinse Results of HPV PCR	HPV16 or HPV18 Negative	9	2	11
Total		41	4	45
Sensitivity = 78%, Specificity = 50%, PPV = 94%, and NPV = 18%.

Tonsil		Tumor p16 status		Total
Tonsil		Positive	Negative	Total
Oral rinse Results of HPV PCR	HPV16 or HPV18 Positive	19	0	19
Oral rinse Results of HPV PCR	HPV16 or HPV18 Negative	3	0	3
Total		22	0	22
Sensitivity = 86%, Specificity = not evaluable, PPV = 100%, and NPV = not evaluable.

Base of tongue		Tumor p16 status		Total
Base of tongue		Positive	Negative	Total
Oral rinse Results of HPV PCR	HPV16 or HPV18 Positive	13	2	15
	HPV16 or HPV18 Negative	6	2	8
Total		19	4	23
Sensitivity = 68%, Specificity = 50%, PPV = 87%, and NPV = 25%.