Background: We aimed to review systematically the literature on locoregional recurrence rates in patients with HPV-positive and-negative oropharyngeal squamous cell carcinoma (OPSCC). Methods: PubMed and Embase databases were systematically searched using key words such as human papillomavirus, oropharyngeal squamous cell carcinoma with local, regional, and locoregional recurrence. Results: Nine studies (2974 patients with known HPV-status, 59% HPV-positive) were included. Among the HPV-positive and-negative patients, 69% and 58% had lymph node metastasis at diagnosis. At a median time to recurrence ranging from 8.4 to 13.2 months among the included studies, we found that a weighted average of 9% and 26% for HPV-positive and-negative patients experienced locoregional recurrence. Overall, the median follow-up time ranged from 21 to 83 months among the included studies. Conclusion: Recurrence rates for HPV-positive and-negative OPSCC patients were 9% and 26%, respectively, equating to an almost three times higher rate of locoregional recurrence among HPVnegative patients compared to HPV-positive patients.
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