From: HPV DNA in saliva from patients with SCC of the head and neck is specific for p16-positive oropharyngeal tumours
HPV subtype
Frequency
Percentage of all patients
Percentage of patients positive for HPV
6
1
1.6
3.4
16
18
29
62.1
27
33
2
3.2
6.9
56
58
59
66
72
73
76