Table 5. Overview and results of published studies reporting on awareness of HPV in the development of head and neck cancers among GPs and other healthcare professionals (2014–2018).

Author	Year	Country	Studypopulation	Results
Hertrampf 33	2014	Germany(Schleswig-Holstein)	33 ENTs,192 GPs,135 IMs,28 DERMs	HPV recognised as a risk factor for oral cancer by 70% of ENTs, 54% of GPs, 51% of IM, and 82% of DERMs
Signorelli 34	2014	Italy	938 GPs	38% were aware of HPV as a risk factor for oral cancer.
Jackowska 31	2015	Poland	144 ENTs,192 GPs,68 trainees	Of the GPs, the importance of HPV in the development of OPC was rated as ‘Large’ by 28.6%, as ‘I know the problem’ by 44.8%, as ‘Overrated’ by 6.8%, and as ‘Have not heard about the problem’ by 19.2%.
Hassona 32	2016	Jordan	165 dentists,165 GPs	43.3% were aware of HPV as a risk factor for oral cancer.No significant difference was found between dentists and GPs
Lechner 28	2018	UK	384 GPs	73.9% were aware of HPV as a risk factor for OPC

ENT = ear nose and throat. IM = internal medicine. DERM = dermatologist. HPV = human papillomavirus. OPC = oropharyngeal cancer.