Introduction
There is currentlya lack of available data clearly addressing whether
the proportion of young patients diagnosed with head and neck cancer
(HNC) within the U.S. has increased over the last several decades in
comparison to other age cohorts. This study attempts to elucidate any
trends in oral cavity, oropharynx, larynx and hypopharynx cancer age
distribution in the United States population from 1975-2016. Unlike
previous studies, this paper does not track incidence, but rather
reports proportional changes of prevalence within age cohorts over time.