Background: This meta analysis seeks to investigate the association between HPV and p16 status with overall survival in laryngeal and hypopharyngeal carcinoma. Methods: Medline, Scopus, EMBASE, and the Cochrane Library were used to identify studies for inclusion. Abstracts that discussed HPV/p16 status and prognosis in laryngeal or hypopharyngeal carcinoma were included. Next, full text articles were screened and included based upon a checklist established a priori. Pooled hazard ratios for overall survival were generated using a random effects model. RevMan 5.3, Meta Essentials, and OpenMeta[Analyst] were used for statistical analysis. Results: Thirteen studies published between 2014 and 2019 with sample sizes ranging from 31 to 9,656 were selected for inclusion in this meta analysis. The pooled data demonstrated that p16 status was not significantly associated with OS in either laryngeal or hypopharyngeal carcinoma with HRs of 1.03 (95% CI: 0.73, 1.45; p = 0.88) and 1.02 (95% CI: 0.55, 1.86; p = 0.96), respectively. The pooled data showed that HPV status was predictive of OS in laryngeal cancer with 0.63 (95% CI: 0.41, 0.97; p = 0.03). Conclusions: Our results suggest that p16-positivity does not provide a survival benefit in LC and HPC. This is in contrast to studies in the oropharynx, where p16 status is a standard proxy for HPV infection and HPV infection is associated with improved prognosis.
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