Näytönastekatsaukset

Oral cancer and human papillomavirus

Näytönastekatsaukset
26.5.2026
Jaana Rautava and Marja Pöllänen

Level of evidence: B

Human papilloma virus (HPV) is probably found in only a small proportion of oral squamous cell carcinomas, and HPV positivity does probably not affect the prognosis of oral cancer.

HPV is found in less than 10% of oral squamous cell carcinomas. HPV does not appear to be a necessary or strong risk factor for the development of oral cancer. Risk factors for HPV-positive oral cancer include older age, male gender, frequent sexual intercourse, smoking, drug use, poor oral health, and concurrent genital HPV infection.

Evidence comes from meta-analysis of mainly observational studies. Studies have many limitations: variable sample collection that may not be oral cavity specific, variable HPV detection methods such as p16, DNA and mRNA. Studies also vary on how many genotypes they have detected. Over 200 HPV genotypes have been found but only small subset is well-characterized. Only DNA analysis with PCR gives the result on genotype level and active infection is detected only by mRNA. Furthermore, all prevalence studies do not have control group. HPV is present in almost 80% of people. However, this does not mean active infection, HPV DNA may be a sign of a passenger infection and p16 over-expression is not HPV specific.

Table 1. Description of the included studies
ReferenceStudy typePopulationExposure and comparisonOutcomesRisk of bias «Additional comments for included studies»2
«Katirachi SK, Grønlund MP, Jakobsen KK, ym. The Prevalence of HPV in Oral Cavity Squamous Cell Carcinoma. Viruses 2023;15(2): »1SR/MA, including 31 cohort studiesPatients with OSCC, N=5007
24 countries
HPV+ with PCR or p16HPV prevalencemoderate
«Fonsêca TC, Jural LA, Marañón-Vásquez GA, ym. Global prevalence of human papillomavirus-related oral and oropharyngeal squamous cell carcinomas: a systematic review and meta-analysis. Clin Oral Invest»2SR/MA
65 articles (cohort studies)
Patients with OSCC N=14,721HPV+ with p16 or DNA or ISHHPV prevalencemoderate
«Kaur G, Yap T, Ramani R, ym. Assessing bias in the causal role of HPV in oral cancer: A systematic review and meta-analysis. Oral Dis 2024;30(8):5379-5387 »3SR, 15 observational, case-control studiesPatients with OSCC compared to controls N=NAHPV+ PCR or HPV-antibodies in serumHPV prevalencemoderate
«Melo BAC, Vilar LG, Oliveira NR, ym. Human papillomavirus infection and oral squamous cell carcinoma - a systematic review. Braz J Otorhinolaryngol 2021;87(3):346-352 »4SR,
5 observational cross-sectional studies
Patients with OSSCN=383HPV+ mRNAHPV prevalencemoderate
«Sahovaler A, Kim MH, Mendez A, ym. Survival Outcomes in Human Papillomavirus-Associated Nonoropharyngeal Squamous Cell Carcinomas: A Systematic Review and Meta-analysis. JAMA Otolaryngol Head Neck Sur»5SR/MA, including 22 observational and 2 RCT studiesPatients with non-oropharyngeal squamous cell carcinoma in the oral cavity N=24,854HPV detection (p16/PCR/ISH) Association of HPV+ on oral cancer survivalmoderate
«Christianto S, Li KY, Huang TH, ym. The Prognostic Value of Human Papilloma Virus Infection in Oral Cavity Squamous Cell Carcinoma: A Meta-Analysis. Laryngoscope 2022;132(9):1760-1770 »6SR/MA, 22 articles, retrospective cohorts)Patients with OSCC N=3065HPV detection (p16/PCR/ISH) HPV+ association on oral cancer survivalhigh
«Petrelli F, Cin ED, Ghidini A, ym. Human papillomavirus infection and non-oropharyngeal head and neck cancers: an umbrella review of meta-analysis. Eur Arch Otorhinolaryngol 2023;280(9):3921-3930 »7SR/MA
umbrella review of meta-analyses, including  
15 meta-analyses including 79 studies with oral cancer
Patients with oral cancer N=36235HPV detection (p16/PCR/ISH) Association of HPV+ on oral cancer survivalmoderate
«Syrjänen S, Lodi G, von Bültzingslöwen I, ym. Human papillomaviruses in oral carcinoma and oral potentially malignant disorders: a systematic review. Oral Dis 2011;17 Suppl 1():58-72 »8MA, 39 articles(cohorts)Patients with OSCC and controls N=4133HPV+ with p16 or DNAHPV prevalencemoderate

RCT=randomized controlled trial; SR=systematic review; MA=meta-analysis, OSCC=oral squamous cell carcinoma

Table 2. Additional comments for included studies
ReferenceComments
«Katirachi SK, Grønlund MP, Jakobsen KK, ym. The Prevalence of HPV in Oral Cavity Squamous Cell Carcinoma. Viruses 2023;15(2): »1The studies were published 2017-2022.Study periods were between 1986-2019.
The inconsistency of HPV detection methods among the studies was remarkable and a limitation to this review.
«Fonsêca TC, Jural LA, Marañón-Vásquez GA, ym. Global prevalence of human papillomavirus-related oral and oropharyngeal squamous cell carcinomas: a systematic review and meta-analysis. Clin Oral Invest»2The studies were published before 10/2022-Regarding the way the participants were sampled, none of the 65 articles met the initial inclusion criteria. This occurred because all the papers used a non-probabilistic sample, once they were all a convenience sample.
«Kaur G, Yap T, Ramani R, ym. Assessing bias in the causal role of HPV in oral cancer: A systematic review and meta-analysis. Oral Dis 2024;30(8):5379-5387 »3The studies were published during 2001-2021 All included studies were case control studies and had moderate- to- severe risk of bias. Study limitations such as inconsistent measurements, no mRNA E6/E/ analysis, high confounding, and lack of gold standard testing. 
«Melo BAC, Vilar LG, Oliveira NR, ym. Human papillomavirus infection and oral squamous cell carcinoma - a systematic review. Braz J Otorhinolaryngol 2021;87(3):346-352 »4The studies were until 2/2018 The quality score average of included articles was five points (on a scale 0-14). It was not possible to assess if HPV infection was associated with oral squamous cell carcinomas because none of the studies included was longitudinal and cross-sectional investigations do not have control group.
«Sahovaler A, Kim MH, Mendez A, ym. Survival Outcomes in Human Papillomavirus-Associated Nonoropharyngeal Squamous Cell Carcinomas: A Systematic Review and Meta-analysis. JAMA Otolaryngol Head Neck Sur»5The studies were from years 1946-2019.
Significant heterogeneity among studies in some models. In the oral cavity, heterogeneity was still present after subgroup analysis by diagnostic method.
«Christianto S, Li KY, Huang TH, ym. The Prognostic Value of Human Papilloma Virus Infection in Oral Cavity Squamous Cell Carcinoma: A Meta-Analysis. Laryngoscope 2022;132(9):1760-1770 »6The studies were from years 1996-2020.
The included studies were heterogenous according to cancer stage, age, treatment modalities, and history of tobacco or alcohol consumption that may affect the prognosis. Another limitation was the use of different HPV detection methods in these included articles.
In meta-analysis for disease free survival one study (of eight studies) by Chiba et al. was excluded due to 100% DFS proportion in patient with HPV-positive along the follow-up period. And further, meta-analysis for disease specific survival excluded two studies (of nine) Lee et al. and Minami et al. due to the 100% DSS proportion from HPV-positive group.
«Petrelli F, Cin ED, Ghidini A, ym. Human papillomavirus infection and non-oropharyngeal head and neck cancers: an umbrella review of meta-analysis. Eur Arch Otorhinolaryngol 2023;280(9):3921-3930 »7The reviews were from years 2006-2022. Different detection methods for HPV testing were used in the included meta-analysis. Moreover, the included studies in the various meta-analyses had different follow-up periods and likely included patients treated with different modalities, which may have influenced the results. In addition, according to the AMSTAR 2 criteria, 40% of the meta-analyses included in this umbrella analysis had "low or critically low" methodological quality.
«Syrjänen S, Lodi G, von Bültzingslöwen I, ym. Human papillomaviruses in oral carcinoma and oral potentially malignant disorders: a systematic review. Oral Dis 2011;17 Suppl 1():58-72 »8The studies were from years 1980-1998.

Results

Table 3. HPV prevalencein oral cancer
ReferenceNumber of studies and (number of patients)Follow-up timeAbsolute number of events (%) IAbsolute number of events (%) CRelative effect (95% CI)
Level of evidence: very low
The quality of negative evidence is up-graded due effect of plausible residual confounfding.
«Katirachi SK, Grønlund MP, Jakobsen KK, ym. The Prevalence of HPV in Oral Cavity Squamous Cell Carcinoma. Viruses 2023;15(2): »131 (5007) 6% (3–10%)
«Fonsêca TC, Jural LA, Marañón-Vásquez GA, ym. Global prevalence of human papillomavirus-related oral and oropharyngeal squamous cell carcinomas: a systematic review and meta-analysis. Clin Oral Invest»265 (14,721) 10% (event rate=0.1; 95% CI: 0.07, 0.13; P < 0.01; I2=88%)
«Kaur G, Yap T, Ramani R, ym. Assessing bias in the causal role of HPV in oral cancer: A systematic review and meta-analysis. Oral Dis 2024;30(8):5379-5387 »315 (number of patients NA) OC, OR 5.36 times (95% CI 3.29–8.72) compared to controls.
«Melo BAC, Vilar LG, Oliveira NR, ym. Human papillomavirus infection and oral squamous cell carcinoma - a systematic review. Braz J Otorhinolaryngol 2021;87(3):346-352 »45 (383) 4.4%
«Petrelli F, Cin ED, Ghidini A, ym. Human papillomavirus infection and non-oropharyngeal head and neck cancers: an umbrella review of meta-analysis. Eur Arch Otorhinolaryngol 2023;280(9):3921-3930 »715 (83 090)OR = 2.40, (95 % CI 1.87–3.07)
«Syrjänen S, Lodi G, von Bültzingslöwen I, ym. Human papillomaviruses in oral carcinoma and oral potentially malignant disorders: a systematic review. Oral Dis 2011;17 Suppl 1():58-72 »839 (4133) OR 3.98 (95% CI: 2.62–6.02)

I=intervention; C=comparison; CI=confidence interval

Table 4. Overall survival (OS) of HPV positive oral cancer patients
ReferenceNumber of studies and number of patients Follow-up timeAbsolute number of events (%) IAbsolute number of events (%) CRelative effect (95% CI) HR < 1 mean better OS
Level of evidence:low
The quality of negative evidence is up-graded due to plausible residual confounding.
«Petrelli F, Cin ED, Ghidini A, ym. Human papillomavirus infection and non-oropharyngeal head and neck cancers: an umbrella review of meta-analysis. Eur Arch Otorhinolaryngol 2023;280(9):3921-3930 »73 meta-analyses
28 studies
13743 patients
0-114 HR
0.89 (0.47-1.68)
I2 87%
Table 5. Disease specific survival (DSS) of HPV positive oral cancer patients
ReferenceNumber of studies and number of patients (I/C)Follow-up timeAbsolute number of events (%) IAbsolute number of events (%) CRelative effect (95% CI)
HR values > 1 favor/mean decreased DSS
Level of evidence: low
The quality of negative evidence is up-graded due to plausible residual confounding.
«Christianto S, Li KY, Huang TH, ym. The Prognostic Value of Human Papilloma Virus Infection in Oral Cavity Squamous Cell Carcinoma: A Meta-Analysis. Laryngoscope 2022;132(9):1760-1770 »68 studies
1323 patients
HR 1.20 (0.63–2.26)*
I2 83%

* HR values > 1 favor HPV negative patients

Table 6. Disease free survival (DFS) of HPV positive oral cancer patients
ReferenceNumber of studies and number of patients (I/C)Follow-up timeAbsolute number of events (%) IAbsolute number of events (%) CRelative effect (95% CI)
HR values > 1 favor/mean decreased DFS
Level of evidence: low
The quality of negative evidence is up-graded due to plausible residual confounding.
«Sahovaler A, Kim MH, Mendez A, ym. Survival Outcomes in Human Papillomavirus-Associated Nonoropharyngeal Squamous Cell Carcinomas: A Systematic Review and Meta-analysis. JAMA Otolaryngol Head Neck Sur»57 studies
1796 patients
36-74 months HR 1.81 (1.12-2.91)*
I2 = 47 %
«Christianto S, Li KY, Huang TH, ym. The Prognostic Value of Human Papilloma Virus Infection in Oral Cavity Squamous Cell Carcinoma: A Meta-Analysis. Laryngoscope 2022;132(9):1760-1770 »67 studies
1288 patients
NA HR 1.23 (0.79–1.93) I2 69 %

* HR values > 1 favor HPV negative patients

References

  1. Katirachi SK, Grønlund MP, Jakobsen KK, ym. The Prevalence of HPV in Oral Cavity Squamous Cell Carcinoma. Viruses 2023;15(2): «PMID: 36851665»PubMed
  2. Fonsêca TC, Jural LA, Marañón-Vásquez GA, ym. Global prevalence of human papillomavirus-related oral and oropharyngeal squamous cell carcinomas: a systematic review and meta-analysis. Clin Oral Investig 2023;28(1):62 «PMID: 38158517»PubMed
  3. Kaur G, Yap T, Ramani R, ym. Assessing bias in the causal role of HPV in oral cancer: A systematic review and meta-analysis. Oral Dis 2024;30(8):5379-5387 «PMID: 38956902»PubMed
  4. Melo BAC, Vilar LG, Oliveira NR, ym. Human papillomavirus infection and oral squamous cell carcinoma - a systematic review. Braz J Otorhinolaryngol 2021;87(3):346-352 «PMID: 33339760»PubMed
  5. Sahovaler A, Kim MH, Mendez A, ym. Survival Outcomes in Human Papillomavirus-Associated Nonoropharyngeal Squamous Cell Carcinomas: A Systematic Review and Meta-analysis. JAMA Otolaryngol Head Neck Surg 2020;146(12):1158-1166 «PMID: 33057610»PubMed
  6. Christianto S, Li KY, Huang TH, ym. The Prognostic Value of Human Papilloma Virus Infection in Oral Cavity Squamous Cell Carcinoma: A Meta-Analysis. Laryngoscope 2022;132(9):1760-1770 «PMID: 34953144»PubMed
  7. Petrelli F, Cin ED, Ghidini A, ym. Human papillomavirus infection and non-oropharyngeal head and neck cancers: an umbrella review of meta-analysis. Eur Arch Otorhinolaryngol 2023;280(9):3921-3930 «PMID: 37212863»PubMed
  8. Syrjänen S, Lodi G, von Bültzingslöwen I, ym. Human papillomaviruses in oral carcinoma and oral potentially malignant disorders: a systematic review. Oral Dis 2011;17 Suppl 1():58-72 «PMID: 21382139»PubMed