Impact of Screening for HPV-positive Oropharyngeal Cancers: a Microsimulation-Based Modeling Study.
Journal of the National Cancer Institute（2025）
Division of Cancer Epidemiology and Genetics | Johns Hopkins University | Harvard T. H. Chan School of Public Health | MD Anderson Cancer Center
Abstract
BACKGROUND:We estimated the impact of screening on morbidity and mortality of HPV16-positive oropharyngeal cancer among US men aged 45-79 years. METHODS:We developed an individual-level, state-transition natural history microsimulation model to estimate the impact of screening using oral HPV16 detection, HPV16-E6 antibody detection, and transcervical-ultrasound of neck/oropharynx. We compared clinical detection to counterfactual screen detection for cancer stage, single- vs multiple-modality treatment, and survival. Screening scenarios encompassed four progression speeds across cancer stages (very-slow, slow, fast, and very-fast) and four screening frequencies. RESULTS:Among US men aged 45-79 years in 2021 (N = 54,881,311), 163,958 clinically diagnosed HPV-positive oropharyngeal cancers and 32,009 deaths would occur through age 84 in the absence of screening. Assuming very-fast progression, 4%, 20%, 31%, and 60% of these cancers would be detected by one-off, 5-yearly, 3-yearly, and annual screening. Annual screening (very-fast progression) could reduce the number of cancers diagnosed at advanced stages (AJCC 7, Stages III/IV: 90.0% with no screening vs 59.1%) and treated by multiple-modalities (80.6% with no screening vs 50.6%). Cancer mortality would also be reduced by 36.2%, with a gain of 106,000 life-years. Annual screening would have a number needed to screen (NNS) of 561 per screen-detected cancer, 1,118 per additional cancer treated by single-modality, 4,740 per death prevented, and 520 per life-year gained; such high NNS reflect potential inefficiency of population-level screening. CONCLUSIONS:If proven efficacious in randomized trials and cost-effective, screening for HPV-positive oropharyngeal cancers could provide considerable population-level reductions in advanced stage cancers, treatment-related morbidities, and mortality.
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